Giro

The Rincon combines a supple, breathable Synchwire upper with a robust nylon-composite plate and an aggressive, dual-injected rubber outsole for excellent traction that won't de-laminate or break down. A supportive 3D-molded footbed enhances comfort and fit, which is adjustable via a single BOA L6 dial featuring 1mm adjustment and an adjustable forefoot strap. It's a great choice for riders looking for reliable performance with outstanding value in off-road footwear. Upper construction: - One-piece Synchwire upper with thermo-bonded exo-structure - Rubber reinforced heel and toe sections - Boa L6 dial featuring 1mm adjustment and macro release, with steel lace and soft lace guides - Reflective heel tab Footbed: - Die-cut EVA footbed with medium arch support Outsole: - Nylon-composite 2-bolt plate with dual-injected rubber outsole - Stainless steel hardware Product weight - 340 grams (Size 42)

The Switchblade MIPS is an ASTM downhill certified full-face helmet with a removable chinbar so you can easily switch to rowdy when it's time to descend. Everything about the Switchblade is optimized for the descent. That's why in addition to mandatory standards, it's also certified to ASTM-1952 DH with and without the chinbar. The chinbar is easy to remove - just push the buttons under the chinbar, rotate up, and take off—and it's just as easy to reinstall. Another boast-worthy feature on the Switchblade MIPS is the Roc Loc Air DH fit system, which has a bumper around the dial to prevent accidental adjustments if your helmet contacts your backpack or neck brace—all while keeping you cool. When the chinbar comes off, Wind Tunnel cheek pad ventilation adds even more cooling power as you start to climb. Plus, the full-cut style gives this helmet an aggressive look and provides ASTM certified coverage even when the chinbar is removed. When your ride is all about descending, your helmet should be too, and the Switchblade MIPS is the only removable chinbar helmet that is truly built for the down.

The Chamber II shoe holds fast to the legacy of Giro's original EWS and DH World Cup-winning Chamber shoe—secure fit, a durable water-resistant reinforced microfiber upper and a full Vibram Megagrip rubber outsole—and steps up to a new level with a 10mm cleat setback. More setback allows you to position the pedals further back under the arch of the foot to reduce fatigue and enhance positioning for technical terrain. The internal shank also has been updated with a Tri-Mold construction that optimizes stiffness and flex for each zone of the foot. The result is a new level of performance that’s better from top to bottom, with the right amount of flex for uphill pushing, incredible pedaling efficiency, and a better connection to the pedals.

Among the Manifest's extraordinary features is Spherical Technology, which utilizes a ball-and-socket design powered by MIPS, the market-leading brain protection system that helps to reduce rotational forces. Spherical Technology allows the outer liner to rotate around the inner liner during a crash and also eliminates contact with a hard-plastic slip-plane. In addition to leading head protection, the Manifest offers wide-open airflow thanks to the AURA reinforcing arch, which bolsters structural integrity while allowing air to flow into the massive Wind Tunnel vents. You'll also get a comfortable, secure fit with the easy fit and positioning adjustments built in to the Roc Loc Trail Air fit system and plush, antimicrobial XT2 padding for exceptional sweat absorption. - Spherical Technology's Ball-and-Socket design, powered by MIPS, helps redirect impact forces away from the brain by allowing the outer liner to rotate around the inner liner during a crash. It also eliminates contact with hard plastic or slip-planes against the skin. - Dual-density foam liners designed to address high- and low-speed impacts for more comprehensive energy management. - Structural integrity is bolstered by the shatter-resistant and translucent AURA reinforcing arch that runs throughout the helmet. - Integrated eyewear grippers help secure sunglasses. - All Giro helmets are designed to reduce as much energy as possible while meeting and exceeding stringent safety standards. The goal of Giro's MIPS-equipped helmets is to reduce rotational forces. Giro believes that helmets equipped with this technology can reduce the amount of rotational force that may be transferred to rider's brain in certain impacts. - This visor features an adjustment mechanism that lets you move the visor up and down in indexed steps. These steps include three riding positions plus a high position for goggle storage above your brow. The design allows you to easily adjust your visor with one hand while riding. - Pure silver is the secret ingredient that gives XT2 the power to provide natural, permanent anti-odor protection to keep your helmet feeling and smelling fresh. - The integrated rubber goggle gripper on the back of the helmet helps to ensure that goggles stay in place even when you're getting rowdy on the trail. - The Roc Loc Trail Air Fit System offers micro-adjustable fit adjustment, enhanced ventilation, and durable design that resists abrasion, scratches, and UV rays.

The Vanquish MIPS is the pinnacle of high-performance road cycling helmets, featuring the innovative TransformAir design that actively streamlines airflow to reduce drag. Inside the Vanquish is an EPS liner with progressive layering, and Giro's renowned RocLoc Air system seamlessly integrated with MIPS technology to enhance comfort and cooling power while providing an additional measure of protection. So whether you're hammering off the front, smashing an Ironman course, or laying down maximum wattage in the dash to the finish line, the Vanquish shapes the wind to work for you.

With exceptional warmth and waterproofing for the coldest and wettest conditions, a heat-reflecting insole, and a QuickLace system that's housed under the outer shroud, your coldest days on the road are soon to be your favorite. The all-new Blaze is our core winter cycling shoe, featuring modern technical materials and design to reduce bulk while delivering exceptional warmth and weatherproofing for conditions down to -10° C /14° F. The heart of the Blaze is an internal, moisture-wicking mountain bike shoe that's fully insulated with a channeled, high-loft Primaloft synthetic sheath featuring 10,000 W/P + 10,000 GM2 wind- and waterproof performance plus a heat-reflecting insole and protective reinforcement in key wear zones. The result is a breakthrough in warm, dry comfort with purpose-driven details that inspire confidence to pedal through the toughest winter riding conditions. Specs: - Upper Construction: Stretch woven face fabric with 10,000 w/p + 10,000 GM2; film channeled, high-loft fleece interior plus elastic outer collar Primaloft synthetic insulation; Fully seam-sealed stitching; Breathable, moisture-wicking mesh upper inner shoe; Thermobonded rubber toe and heel reinforcements; Integrated ankle padding; Reflective detail at heel and side profile - Reflectivity: Reflective detail at heel and side profile - Footbed: Heat-reflective insole with high loft fleece and laminated foil - Outsole: Nylon-composite plate; Dual-injected "Ice grip" soft rubber outsole; Stainless steel hardware - Weight: 385g (Size 42)

As one of the most sophisticated urban helmets in the line, the Evoke MIPS has a sleek In-Mold shell to help keep it lightweight, and the adjustable eye shield seals out wind and weather whenever conditions demand it. A Roc Loc City MIPS fit system makes fit and stability adjustments almost effortless and integrates seamlessly with MIPS technology, which helps to reduce rotational forces and provide more protection in certain impacts. Thoughtful details include reflective accents and a lock port for securing the helmet with your bike when you're on the move. And with the removable "be seen" LED rear lighting included, you get flexibility to fit your needs and your budget.

The Privateer Lace combines the familiar comfort of Giro's Empire shoes with the durability of their acclaimed Privateer mountain bike shoes. The laced upper design is functional, intuitive, and reliable since these shoes are built to withstand rugged conditions and daily use on the trails without a second thought. The microfiber upper fits and feels great, and the co-molded outsole permanently fuses the nylon sole with an aggressively lugged rubber tread, giving you plenty of power at the pedals with sure grip on the trails. So, you get everything you need for off-road adventures, with nothing to break down or get in the way of your fun.

It's time to go all-in for winning performance and style with the Chrono Pro Jersey. The Chrono Pro Jersey started in the workshop of our master Italian craftsman. Along with our team of designers and pattern makers, we set out to make the best-fitting and highest-performing jersey available. The fabrication is light enough to be worn on hot summer days, and when layered with the Chrono Base and Chrono Wind Vest, it becomes a constant and versatile riding companion. Choose from a graphic or logo print and create a kit that will turn heads as you lead out the climb. Reflectivity - Reflective logo and highlights Fabric - Gradient stretch woven material: made in Italy with Italian materials: UPF 50+ (all materials except front) - Front: 80% polyester / 20% elastane - Back: 74% polyester / 26% elastane - Sleeve: 86% polyester / 14% elastane (laser-cut openings) - Mesh side panels: 94% nylon / 6% elastane - 3 expandable storage pockets (ESP): secure zip pocket: full-length front zipper with soft zipper guard; hem gripper

Giro design, and high-performance innovation for core road cyclists, gravel enthusiasts, and adventure riders. Advanced Performance for the Adventurous The heart of the Helios's extraordinary design and performance is Spherical Technology, which utilizes a ball-and-socket design powered by MIPS, the market-leading brain protection system that can help to reduce rotational forces. Spherical Technology allows the helmet's outer liner to rotate around the inner liner during a crash, and also allows Progressive Layering of the inner and outer liners to provide more comprehensive protection and performance. In addition to advanced head protection, the Helios's 15 Wind Tunnel vents provide exceptional cooling power that's enhanced by our patented Roc Loc 5 Air fit system and plush, antimicrobial XT2 padding for exceptional sweat absorption. It's the ideal match for your road and gravel adventures. Specs: - Impact Management: Spherical Technology, Powered By Mips - Construction: Independent, in-mold liners with spherical ball-and-socket design, Polycarbonate Shell, Hardbody Lower Shell - Ventilation:15 wind tunnel vents with internal channeling - Fit System: Roc Loc 5 Air - Weight: 270 (Size Medium CPSC, CE) - Certification: Complies with the US CPSC Safety Standard for bicycle helmet for persons age 5 and older E.U.: CE EN1078 - Highlights: Nanobead EPS Foam, Coolfit Antimicrobial Padding, Slimline Webbing, Four-piece shell w/lower hardbody

For the Latch mountain bike shoe, we started with a new fit that brings the foot closer to the pedal and flattens the sole profile, optimizing the contact patch between sole and pedal. Then we collaborated with a team of rubber engineers to formulate Tack Rubber, a highly elastic compound that matches grip with durability in our new Gamma tread design. And at the heart of the shoe is a revelation in performance called Mute Foam, a midsole foam that's specially engineered with a slow-rebound action that cuts chatter and vibration to help keep you connected to the pedal, regardless of ruts, roots, and rocks. The unique combination of fit, a fast-drying microfiber upper, the grip of Tack Rubber, and the damping of Mute Foam makes Latch a new benchmark in flat-pedal performance.

Giro's Sentrie Techlace offers elite-level performance with the comfort of laces and the convenience of a strap. The Techlace system replaces D-rings and other hardware with laces, providing a more supple feel across the forefoot, and the laces can be easily replaced if damaged. The Boa L6 dial offers 1mm adjustment increments when tightening and easy pull-to-release function for quick in-and-out of the shoe. The Sentrie Techlace is constructed with a lightweight bonded and welded breathable upper and an Easton EC70 carbon composite outsole. Inside the shoe, the SuperNatural Fit footbed features adjustable arch supports to personalize fit, comfort and pedaling efficiency. - Techlace + Boa L6 dial (1mm + with macro release), Toe and heel microfiber reinforcements, Welded and bonded upper - Easton EC70 carbon composite, Steel hardware, Replaceable walking pads - Super Natural Fit Kit with adjustable arch support, Aegis anti-microbial treatment - Weight: 245 grams (size 42.5)

The Raes Techlace lets you have it all. This is a stunning road shoe featuring the comfort of laces and the convenience of a strap. The Techlace system replaces D-rings and other hardware with laces, providing a more supple feel across the forefoot, and the laces can be easily replaced if damaged. The Boa L6 dial offers 1mm adjustment increments when tightening with macro release function. The Raes Techlace is constructed with a lightweight, breathable bonded and welded upper and an Easton EC70 carbon composite outsole. Inside the shoe, Giro's SuperNatural Fit footbed features adjustable arch supports to personalize fit, comfort and pedaling efficiency. - Techlace + Boa L6 dial (1mm tighten with macro release) - Welded and bonded upper - Toe and heel microfiber reinforcements - Easton EC70 carbon composite - Steel hardware - Replaceable walking pads - Supernatural Fit kit with adjustable arch support - Aegis anti-microbial treatment - Weight: 230 grams (size 39)

You've seen knit technology in athletic footwear, but you haven't seen it in cycling … until now. The women's specific Empire E70 W Knit features Giro's newly engineered Xnetic Knit upper, which offers unparalleled comfort and breathability. Xnetic Knit technology was developed for the specific needs of performance cycling. An internal TPU skeletal system provides support where you need it, while the knit offers suppleness for superior sock-like comfort. The upper is DWR-treated for water repellency and easy cleaning, and a TPU-reinforced toe and heel add durability and abrasion resistance. Plus, the style of the Empire E70 Knit is simply undeniable. - Engineered Xnetic Knit upper - Bonded TPU skeletal support structure - TPU-reinforced toe and heel - DWR treated - Empire laces: hold a knot, durable and light - Easton EC70 carbon composite outsole - Steel hardware - Replaceable heel pads - Molded EVA footbed with medium arch support - Weight: 230 grams (size 39)

The women's Espada Boa combines timeless cycling style with the latest materials to redefine performance at this price. It starts with a perforated, breathable microfiber and mesh upper that conforms to your foot, with a Boa L6 closure dial for fast, intuitive adjustment. Then Giro adds a robust Easton EC70 carbon composite outsole with replaceable heel pads to get the most out of your pedal stroke, without sacrificing long-term durability. - Breathable microfiber and mesh upper - Boa L6 (1mm + with macro release) retention with premium cover - Offset low-profile straps and offset D-ring - Easton EC70 carbon composite outsole - Molded EVA footbed with medium arch support - Weight: 245 grams (size 39)

Keep crushing as the temperature drops. By utilizing a brushed-back high-loft Italian fabric, this jersey stretches and moves with you, and custom articulated cuffs fit snugly to keep the cold out. Because cold-weather riding often requires hauling extra cargo, Giro has constructed Expandable Storage Pockets (ESP) that expand when you need to store a rain jacket, gloves, or snacks. When the brisk air tries to hold you back, get out there and keep crushing the ride as you crush the cold. - Italian thermal fabric - UPF 50+ - Durable Water Repellent (DWR) coating - Expandable Storage Pockets (ESP) - Secure zip pocket - Full-length wind guard front zipper - Articulated stretch cuffs - Hem gripper - Reflective logo and highlights - Formfitting

The Savix road shoe offers the comfort you'd expect from Giro with the quick adjustment provided by a Boa dial. With a single dial and a set-and-forget front strap, you can quickly get in your shoes and get on the road. The Boa L6 dial offers 1mm adjustment increments when tightening, and a macro-release function to get out of the shoe. The universal 3/2 nylon outsole allows you to mount either mountain bike or road cleats depending on your pedal preference. - Boa L6 (1mm + with macro release) retention with lower-volume strap - Synthetic upper - Injected nylon outsole with universal cleat mount (2- or 3-bolt) - Die-cut insoles - Weight: 310 grams (size 42)

The Artex MIPS is a blast of fresh air in helmet design, offering an exceptionally compact road-race-inspired design coupled with a removable visor and slightly deeper coverage for riding trails and grinding out long miles on mixed-surface roads. The fit is luxurious and secure, thanks to Giro's highly adjustable Roc Loc 5 Air MIPS system that allows you to customize fit/feel for great stability and long-range comfort while providing an added measure of protection from rotational forces in the event of an angled impact. The outer shell is molded from a tough polycarbonate that’s fused permanently to the EPS foam liner using Giro's In-Mold construction process to enhance durability and ventilation without excess bulk.

The Empire ACC continues to push the boundaries of high-performance cycling shoes. A classic laced closure offers seven points of fit adjustment and complements the breathable Evofiber synthetic upper for superb fit and comfort. The Easton EC90 ACC full carbon sole offers the stiffness needed for everything from Grand Tours to gran fondos, with ultra-low 6.5mm stack height for a direct connection to the pedals. And our adjustable SuperNatural Fit footbed lets you fine-tune the fit and arch support for an unmatched blend of performance and style. - Spare Laces, Shoe Bag - Upper: One-piece upper design; Premium Evofiber breathable microfiber; Laced closure - Outsole: Easton EC90 ACC carbon fiber; Replaceable heel pads - Footbed: SuperNatural Fit Kit with adjustable arch support; X-Static anti-microbial fiber

The best flat-pedal trail shoes inspire the confidence you need regardless of the terrain or conditions. So, Giro dug in with the world’s most technical rubber experts at Vibram to create the stickiest shoe compound they have ever launched. The all-new Megagrip ISR rubber combines best-in-class vibration-damping with pedal-sticking power. And when you combine that rubber with the Riddance’s full-length optimized EVA midsole, a smart tread design and a supple-yet-durable microfiber upper, you get exceptional performance and confidence—even over the most demanding trails and jumps.

Great for riding on the course or off the beaten track, the Sector mountain bike shoe is ready to power up for adventures. Race-ready. Adventure inspired. The Sector combines a supple, breathable Synchwire upper with a stout carbon-composite plate and an aggressive, dual-injected rubber outsole for excellent traction that won't de-laminate or break down. A supportive 3D molded footbed with Aegis anti-microbial treatment enhances comfort and fit, which is adjustable via dual BOA L6 dials featuring 1mm adjustment and macro release. It's a great choice for riders looking for inspired performance that's capable on the course or off the beaten track. - One-piece Synchwire upper with thermo-bonded exo-structure - Reinforced heel and toe sections - Dual Boa L6 dial featuring 1mm adjustment and macro release, with steel lace and soft lace guides - 3D molded footbed with medium arch support - Carbon-composite 2-bolt plate with dual-injected rubber outsole - Stainless steel hardware - 342 grams (size 42)

The lightweight Empire VR90 delivers redefined off-road performance with the total package—including great power transfer, Vibram soles, customizable insoles, and unparalleled stiffness. The Empire VR90 is one of the lightest options available on dirt and sets the standard in high-performance off-road shoes. Highlights include a lightweight laced one-piece upper for unrivaled comfort, an Easton EC90full carbon outsole, and molded Vibram rubber tread for relentless grip. The upper is made of our breathable Evofiber synthetic upper by Teijin for superb fit and support that won't stretch out with wear or weather. Plus, the adjustable SuperNatural Fit footbed lets you fine-tune the fit and arch support, for maximum pedaling efficiency. Upper construction: - One-piece upper design - Premium Evofiber breathable Teijin microfiber upper - Empire laces: hold a knot, durable, and light - Rubber toe cap Footbed: - Supernatural fit kit with adjustable arch support - Xt2 anti-microbial fiber top sheet Extras: - Travel bag included Outsole: - Easton EC90 carbon fiber outsole - Molded Vibram rubber high-traction lugged outsole - Mid-foot scuff guard - Accommodates steel toe spikes (included) Product weight: - 315 grams (Size 42.5)

Take charge of the road with full-featured performance and comfort. To make a full-featured shoe that can handle extended miles and hard roads, we started with an ultralight monofilament mesh Synchwire upper that fits and feels like a second skin, then added thermal-welded TPU for structural support and resistance to grit and grime. Fast, intuitive fit adjustment is guaranteed with dual Boa L6 buckles, steel laces, and soft lace guides that allow you to get a precise fit with even pressure distribution to ensure comfort with every turn of the pedals. And finally, the advanced carbon composite plate ensures efficient power transfer and responsive feel at the pedals, while allowing 5mm of adjustment for optimal cleat positioning. Upper construction: - One-piece Synchwire upper with thermo-bonded exo-structure - Laser-perforated ventilation throughout - Dual Boa L6 dials featuring 1mm adjustment and macro release, with steel lace and soft lace guides - Reflective heel tab Footbed: - 3D-molded footbed with medium arch support Outsole: - Carbon-composite 3-bolt plate - Dual-injected TZU walking pads - Stainless steel hardware with 5mm fore/aft adjustment Product weight: - 265 grams (Size 42)

The Cadet combines a supple, breathable Synchwire upper with a stout carbon-fiber-reinforced plate for pedaling efficiency, plus a supportive footbed with Aegis anti-microbial treatment for optimal comfort and fit. The single BOA L6 dial offers micro-adjustable tuning in 1mm increments, and combined with the adjustable forefoot strap, cradles your foot securely. This shoe is a great choice for riders looking for inspired performance, lasting comfort, and value. Upper construction: - One-piece Synchwire upper with thermo-bonded exo-structure - Laser-perforated ventilation throughout Footbed: - Die-cut EVA footbed with medium arch support Outsole: - Carbon fiber reinforced outsole with universal cleat mount (2- or 3-bolt) - Dual-injected TPU toe and heel pad Product weight: - 265 grams (Size 42)

The Rincon combines a supple, breathable Synchwire upper with a robust nylon-composite plate and an aggressive, dual-injected rubber outsole for excellent traction that won't de-laminate or break down. A supportive 3D-molded footbed enhances comfort and fit, which is adjustable via a single BOA L6 dial featuring 1mm adjustment and an adjustable forefoot strap. It's a great choice for riders looking for reliable performance with outstanding value in off-road footwear. Upper construction: - One-piece Synchwire upper with thermo-bonded exo-structure - Rubber reinforced heel and toe sections - Boa L6 dial featuring 1mm adjustment and macro release, with steel lace and soft lace guides - Reflective heel tab Footbed: - Die-cut EVA footbed with medium arch support Outsole: - Nylon-composite 2-bolt plate with dual-injected rubber outsole - Stainless steel hardware Product weight - 320 grams (size 39)

The Synthe II MIPS is an icon of road helmet design, combining the performance advantages of a compact profile with great cooling power and luxurious comfort for road and gravel riders. The Synthe MIPS Helmet offers good looks in a slim design while offering more coverage on the back of the helmet for a little extra assurance. The compact form of the Synthe MIPS slips through the air with ease across multiple yaw and head angles and offers impressive cooling power. Key features include the Roc Loc Air fit system with 2-way fit tuning and Aero Mesh Panels with a dedicated port for securely docking sunglasses as you ride. The Synthe MIPS also has the Multi-Directional Impact Protection System, which we believe can redirect energy and provide more protection in certain impacts. - MIPS-equipped—to redirect impact energy, providing more protection in certain impacts: - Construction - In Mold construction - Thermoformed Sl roll cage reinforcement Shell type: - Polycarbonate shell - Number of vents: 26 Ventilation type: - Wind Tunnel Vents with internal channeling Fit System: - Roc Loc 5 Air Impact liner type: - EPS

The Cadet W combines a supple, breathable Synchwire upper with a stout carbon fiber reinforced plate for pedaling efficiency, plus a supportive footbed with Aegis anti-microbial treatment for optimal comfort and fit. The single BOA L6 dial offers micro-adjustable tuning in 1mm increments, and combined with the adjustable forefoot strap, cradles your foot securely. This shoe is a great choice for riders looking for inspired performance, lasting comfort, and value. Upper construction: - One-piece Synchwire upper with thermo-bonded exo-structure - Laser-perforated ventilation throughout Footbed: - Die-cut EVA footbed with medium arch support Outsole: - Carbon fiber reinforced outsole with universal cleat mount (2- or 3-bolt) - Dual-injected TPU toe and heel pad Product weight: - 250 grams (Size 39)

The Tracker fits the need for a cycling/e-bike friendly flat pedal shoe that's light, comfortable and breathable enough for all-day adventures, yet doesn't sacrifice grip or performance when you need it. Built on our new last, placing the foot closer to the pedal and featuring a flat profile for optimal pedal contact, the Tracker has direct lineage to the performance of our more aggressive flat pedal models without any excess bulk. The Tack Rubber outsole engages flat pedal pins with confidence and a dual-layer EVA midsole provides comfort for off-the-bike hikes. A single, tongue mounted BOA L6 dial makes for quick on/off and micro-adjustment for a supportive fit.

The Eclipse Spherical is both the fastest road helmet and the coolest aero road helmet Giro has ever created, bringing our best technologies together in a light, compact form that's ideal for road and gravel racing. The sleek outer shell actively streamlines airflow to reduce drag across multiple wind angles, while 14 Wind Tunnel vents pull air through the helmet to provide incredible cooling power that rivals our most aggressively vented road helmets. Inside, the ball-and-socket design of Spherical Technology is powered by the MIPS brain protection system, which allows the helmet's outer EPS foam liner to rotate around the inner foam liner during a crash to help redirect impact forces away from the brain. Progressive Layering of both the inner and outer liners help to offer more comprehensive protection, too. The patented Roc Loc 5 Air system enhances stability and fit, and plush antimicrobial Ionic+ padding helps absorb sweat and moisture while providing durable antimicrobial performance.

Giro’s Air Attack Shield was born in the wind tunnel to give you an aerodynamic advantage against the competition, the clock, and your riding buddies. This sleek road helmet uses the same frontal shape found in traditional time trial helmets for unparalleled efficiency, but Giro removed the tail, so you can use this lid on every ride in stylish comfort. You’ll love the breezy airflow and the excellent fit thanks to Giro's Roc Loc Air fit system and internal cooling channels. Also, knowing how quickly riding conditions can change, Giro ingeniously implemented a magnetic Carl Zeiss Optics shield for quick, easy attachment and removal. - Small = 51-55cm - Medium = 55-59cm - Large = 59-63cm