Adults

With features like integrated MIPS and an easy Ergo Fit dial, the Nomad 2 MIPS represents what bicycling is really about: the freedom of getting on your bike and exploring. Ride Confident The Nomad 2 MIPS meets any aspiring trail rider's needs without compromising fit, function, style, or safety. With our Ergo Fit adjustment system and upgraded padding for all-day support, the Nomad 2 with Integrated MIPS delivers exceptional comfort mile after mile. The trail-specific fusion in-mold polycarbonate shell offers low coverage and is MIPS-equipped for a safe and confident ride. The trails are waiting, and with the Nomad 2 MIPS you have no excuse but to go. Where to first? [Availability, certification, color, and pricing may vary per region. If outside of the USA, please check with your authorized local dealer for more information.] - INTEGRATED MIPS—Integrated MIPS (Multi-Directional Impact Protection System) is designed to reduce rotational forces that can result from certain impacts. By integrating the MIPS slip plane into the retention system, we are able to reduce complexity and weight for a compact, better ventilated helmet that fits more closely to the head. - ERGO FIT—A lightweight fit system with an easy-to-turn rubber overmolded dial for adjustments (integrated with MIPS). - NO-TWIST TRI-GLIDES—Quick-adjust fasteners that help keep straps flat and properly positioned Complies with the US CPSC Safety Standard for Bicycle Helmet for Persons Age 5 and Older

The Cormick MIPS offers a comfortable fit with deep coverage and open ventilation in a design that is suitable for nearly any ride. It’s built using In-Mold construction to reduce weight while enhancing durability to stand up to everyday use. The ease and comfort of Giro's acclaimed Roc Loc Sport MIPS fit system makes fitting as easy as turning a dial, and the fit system is seamlessly integrated with the Multi-Directional Impact Protection System (MIPS), which can redirect energy and provide more protection in certain impacts. When you put it all together, you get the versatility you need to ride everything from forested fire-roads to swooping singletrack trails to the city streets.

The Crossley MIPS offers a spacious fit, with deep coverage and open ventilation in a design that is suitable for nearly any ride. It’s built using In-Mold construction to reduce weight while enhancing durability to stand up to everyday use. The ease and comfort of Giro's acclaimed Roc Loc Sport MIPS fit system makes fitting as easy as turning a dial, and the fit system is seamlessly integrated with the Multi-Directional Impact Protection System (MIPS), which can redirect energy and provide more protection in certain impacts. When you put it all together, you get the versatility you need to ride everything from forested fire-roads to swooping singletrack trails to the city streets. - Universal X-Large

DETAILS Premium Style for Recreational MTB How do you improve on the #1, top-selling helmet on Earth? Carefully, and with meticulous attention to detail. This updated helmet boasts a revised silhouette, redesigned integration of the Mips® Brain Protection System, and improved cooling power. Whether you're headed for off-road adventure or just a relaxing spin, the Fixture™ Mips II offers the right combination of value, performance, and classic design that can't be beat. With a strong and striking style, quick-dry padding, a simple and durable Roc Loc® Sport fit system, and reflective rear decals, every rider demand has been addressed. After all these updates and improvements, you'd be forgiven for thinking we doubled the price of this second-generation Fixture, but the Fixture Mips II retains its position as the value leader. FEATURES - INTEGRATED MIPS® BRAIN PROTECTION SYSTEM — All Giro helmets are designed to reduce as much energy as possible while meeting and exceeding stringent safety standards. The goal of Giro's Integrated Mips®-equipped helmets is to reduce rotational forces while enhancing fit and comfort by combining the Mips slip plane with the helmet's adjustable fit system. 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. Learn more about Mips in the video above. - IN-MOLD CONSTRUCTION — In-Mold Construction fuses a tough polycarbonate outer shell with the helmet's impact-absorbing foam liner. The fusion process allows for better ventilation systems, making in-mold helmets lighter and cooler than traditional helmets. - ROC LOC® SPORT FIT SYSTEM — The Roc Loc® Sport fit system offers easy one-handed operation with a 7cm adjustment range. Its confident clicking feel and sound lets riders know that the helmet is adjusting to a comfortable fit. With comfort similar Roc Loc 5 and ponytail compatibility, the new Roc Loc Sport fit system brings premium function to sport level helmets. - REFLECTIVE DETAILS — Reflective Details enhance visibility at nighttime or in low-light conditions when illuminated by a light source, such as headlights, by returning the light back to the source and reaching the driver's eye. - UNIVERSAL FIT™ SIZING — Our Universal Fit helmets are sculpted to look good and fit great for almost anyone on the first try. By developing proprietary shell sizes based on specific customer groups, and combining them with an easily-adjustable fit system, it's easy for you get the right fit, straight out of the box, without the hassle or expense of trying multiple sizes. HIGHLIGHTS - Quick-dry padding Complies with the US CPSC Safety Standard for Bicycle Helmet for Persons Age 5 and Older

How do you improve on the #1, top-selling helmet on Earth? Carefully, and with meticulous attention to detail. This updated helmet boasts a revised silhouette, redesigned integration of the Mips® Brain Protection System, and improved cooling power. Whether you're headed for off-road adventure or just a relaxing spin, the Fixture™ Mips II offers the right combination of value, performance, and classic design that can't be beat. With a strong and striking style, quick-dry padding, a simple and durable Roc Loc® Sport fit system, and reflective rear decals, every rider demand has been addressed. After all these updates and improvements, you'd be forgiven for thinking we doubled the price of this second-generation Fixture, but the Fixture Mips II retains its position as the value leader. FEATURES - INTEGRATED MIPS® BRAIN PROTECTION SYSTEM — All Giro helmets are designed to reduce as much energy as possible while meeting and exceeding stringent safety standards. The goal of Giro's Integrated Mips®-equipped helmets is to reduce rotational forces while enhancing fit and comfort by combining the Mips slip plane with the helmet's adjustable fit system. 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. Learn more about Mips in the video above. - IN-MOLD CONSTRUCTION — In-Mold Construction fuses a tough polycarbonate outer shell with the helmet's impact-absorbing foam liner. The fusion process allows for better ventilation systems, making in-mold helmets lighter and cooler than traditional helmets. - ROC LOC® SPORT FIT SYSTEM — The Roc Loc® Sport fit system offers easy one-handed operation with a 7cm adjustment range. Its confident clicking feel and sound lets riders know that the helmet is adjusting to a comfortable fit. With comfort similar Roc Loc 5 and ponytail compatibility, the new Roc Loc Sport fit system brings premium function to sport level helmets. - REFLECTIVE DETAILS — Reflective Details enhance visibility at nighttime or in low-light conditions when illuminated by a light source, such as headlights, by returning the light back to the source and reaching the driver's eye. - UNIVERSAL FIT™ SIZING — Our Universal Fit helmets are sculpted to look good and fit great for almost anyone on the first try. By developing proprietary shell sizes based on specific customer groups, and combining them with an easily-adjustable fit system, it's easy for you get the right fit, straight out of the box, without the hassle or expense of trying multiple sizes. HIGHLIGHTS - Quick-dry padding Complies with the US CPSC Safety Standard for Bicycle Helmet for Persons Age 5 and Older

The Trella MIPS offers a comfortable fit, with deep coverage and open ventilation in a design that is suitable for nearly any ride. It’s built using In-Mold construction to reduce weight while enhancing durability that stands up to everyday use. The ease and comfort of Giro's acclaimed Roc Loc Sport MIPS fit system makes fitting as easy as turning a dial, and the fit system is seamlessly integrated with the Multi-Directional Impact Protection System (MIPS), which can redirect energy and provide more protection in certain impacts. When you put it all together, you get the versatility you need to ride everything from forested fire-roads to swooping singletrack trails to the city streets. - Universal One Size

Premium Style for Recreational MTB How do you improve on the #1, top-selling helmet on Earth? Carefully, and with meticulous attention to detail. This updated helmet boasts a revised silhouette, redesigned integration of the Mips® Brain Protection System, and improved cooling power. Whether you're headed for off-road adventure or just a relaxing spin, the Fixture™ Mips II offers the right combination of value, performance, and classic design that can't be beat. With a strong and striking style, quick-dry padding, a simple and durable Roc Loc® Sport fit system, and reflective rear decals, every rider demand has been addressed. After all these updates and improvements, you'd be forgiven for thinking we doubled the price of this second-generation Fixture, but the Fixture Mips II retains its position as the value leader. - INTEGRATED MIPS® BRAIN PROTECTION SYSTEM — All Giro helmets are designed to reduce as much energy as possible while meeting and exceeding stringent safety standards. The goal of Giro's Integrated Mips®-equipped helmets is to reduce rotational forces while enhancing fit and comfort by combining the Mips slip plane with the helmet's adjustable fit system. 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. Learn more about Mips in the video above. - IN-MOLD CONSTRUCTION — In-Mold Construction fuses a tough polycarbonate outer shell with the helmet's impact-absorbing foam liner. The fusion process allows for better ventilation systems, making in-mold helmets lighter and cooler than traditional helmets. - ROC LOC® SPORT FIT SYSTEM — The Roc Loc® Sport fit system offers easy one-handed operation with a 7cm adjustment range. Its confident clicking feel and sound lets riders know that the helmet is adjusting to a comfortable fit. With comfort similar Roc Loc 5 and ponytail compatibility, the new Roc Loc Sport fit system brings premium function to sport level helmets. - REFLECTIVE DETAILS — Reflective Details enhance visibility at nighttime or in low-light conditions when illuminated by a light source, such as headlights, by returning the light back to the source and reaching the driver's eye. - UNIVERSAL FIT™ SIZING — Our Universal Fit helmets are sculpted to look good and fit great for almost anyone on the first try. By developing proprietary shell sizes based on specific customer groups, and combining them with an easily-adjustable fit system, it's easy for you get the right fit, straight out of the box, without the hassle or expense of trying multiple sizes. - Quick-dry padding Complies with the US CPSC Safety Standard for Bicycle Helmet for Persons Age 5 and Older

- Entry level road helmet with high-end looks - 8 huge air inlets - Clip-on visor included - Full-ring retention system - Integrated bug mesh - S 240g - M 270g - L 300g

- Entry level road helmet with high-end looks - 8 huge air inlets - Clip-on visor included - Full-ring retention system - Integrated bug mesh Sizing - Small: 51 - 55cm; 240g - Medium: 52 - 58cm; 270g - Large: 58 - 62cm; 300g

- Entry level road helmet with high-end looks - 8 huge air inlets - Clip-on visor included - Full-ring retention system - Integrated bug mesh - S 240g - M 270g - L 300g

Flight Pro Helmet from Fox Racing.

Stylish, affordable, MIPS™ trail helmet The Mainframe MIPS™ Helmet gives you exactly what you're looking for in an affordable helmet: proven safety features combined with easy trail steez. Featuring extended coverage to protect more of your noggin', the proven MIPS™ impact protection will keep your brain safe in the event of a crash by absorbing and redirecting energies and forces that could otherwise damage it. With a lightweight fit system, the Mainframe MIPS Helmet will also keep you cool, and should the sweat stank builds up, you can easily whip the moisture-wicking liner out and run it through the wash. Great protection at a price that'll save your wallet undue stress. - Proven MIPS™ impact protection system reduces rotational forces in a crash - Extended coverage for added safety - Optimized venting with channeled, in-molded EPS provides efficient cooling - Removable, washable moisture wicking liner - MIPS™ integrated fit system reduces weight and provides a more comfortable, seamless fit - Weight: 390 g, medium - EPS, PC, PA, polyester

- Proven MIPS impact protection system reduces rotational forces in a crash by absorbing and redirecting energies and forces otherwise transmitted to the brain - Extended coverage for added safety - Optimized venting with channeled, in-molded EPS provides efficient cooling - Removable, washable moisture wicking liner - MIPS integrated fit system reduces weight and provides a more comfortable, seamless fit - Weight: 390g (Size MD)

- In-Mold construction - Zoom adjustment system. Full ring for a precise and comfortable adjustment with handy wheel - Retention system with adjustable height - Good ventilation with 8 air inlets and 4 outlets - Ponytail compatibility

- 15% lighter than the classic Macon - Increased protection due to the Ribbed EPS liner - Multisport configuration - Construction—Thinshell - EZ-Fit System - Compatible with Bern Asteroid Light - Adjustable strap divider - Compression molded pads - Visor compatible - Average weight: 376g - MIPS : multi-directional Impact Protection System - 12 vents Sizing: - Small = 52 – 55.5cm - Medium = 55.5 – 59cm

- 15% lighter than the classic Macon - Increased protection due to the Ribbed EPS liner - Multisport configuration - Construction—Thin shell - EZ-Fit System - Compatible with Bern Asteroid Light - Adjustable strap divider - Compression-molded pads - Visor compatible - Average weight: 376g - MIPS: multi-directional Impact Protection System - 12 vents Helmet sizing: - Small: 52 - 55.5cm - Medium: 55.5 - 59cm - Large: 59 - 62cm

- Compass fit - 11 vents with increased airflow - Compatible with click-mount light - Lightweight - Integrated brim - Lay flat strap dividers - Compression-molded pads - Light & durable dual shell - Snowsport knit compatible - Average weight: 350g - Helmet sizing in cm: 59 - 62cm

Designed with a friendly price tag, yet leaving no cards on the table, the Avenue MIPS is tough, refined, and easy to adjust on the fly. Ticket to Ride Usually, when it comes to value, there's going to be some sort of compromise. With the Avenue, we took a hard line against that. We gave it carefully sculpted vents and a graceful shape. We packed it with the same features and careful touches that define our flagship helmets, such as our Sweat Guide liner and No-Twist Tri-Glides for ease of adjustment. Equipped with our easy-to-use Ergo Fit system, fully integrated with the MIPS layer, we proudly sent it out into the world—now it's up to you to decide where to go. [Availability, certification, color, and pricing may vary per region. If outside of the USA, please check with your authorized local dealer for more information.] - INTEGRATED MIPS—Integrated MIPS (Multi-Directional Impact Protection System) is designed to reduce rotational forces that can result from certain impacts. By integrating the MIPS slip plane into the retention system, we are able to reduce complexity and weight for a compact, better ventilated helmet that fits more closely to the head. - ERGO FIT—A lightweight fit system with an easy-to-turn rubber overmolded dial for adjustments (integrated with MIPS). - NO-TWIST TRI-GLIDES—Quick-adjust fasteners that help keep straps flat and properly positioned - SWEAT GUIDE—Sweat Guide pad design pulls moisture away from the brow pad and away from eyewear. Complies with the US CPSC Safety Standard for Bicycle Helmet for Persons Age 5 and Older

Ticket to Ride Usually, when it comes to value, there's going to be some sort of compromise. With the Avenue, we took a hard line against that. We gave it carefully sculpted vents and a graceful shape. We packed it with the same features and careful touches that define our flagship helmets, such as our Sweat Guide liner and No-Twist Tri-Glides for ease of adjustment. Not to mention integrated MIPS. - MIPS stands for Multi-directional Impact Protection System, which is a leading slip-plane technology inside the helmet designed to reduce rotational forces that can result from certain impacts. - What was once ErgoDial now has an improved dial feel and function (no longer requires a push to turn) and is sleeker and less bulky. - Quick-adjust fasteners that help keep straps flat and properly positioned. - Sweat Guide pad design pulls moisture away from the brow pad and away from eyewear. - 59-61cm / 23.2-24.0-inch

TRAIL BOUND Curiosity is best fed on two wheels. The Spark 2 is designed to scratch that itch to get outside, connect a new loop, or find fun singletrack right in your backyard. The updated ventilated shell shape and internal Sweat Guide™ keeps your head cool, while the Ergo Fit™ system keeps your confidence and comfort in check. With an adjustable visor, block the sun during casual family outings on the weekend or add a pair of goggles for longer solo laps on your local trail system. No matter the adventure, the Spark 2 is an all-rounder helmet ready to tackle the next trail. Technologies: No-Twist Tri-Glides™ Sweat Guide™ Adjustable Visor Construction: Fusion In-Mold Polycarbonate Shell Fit System: Ergo Fit™ Weight: 340 grams (size M/L) Vents: 13 Certification: CPSC Bicycle*, CE EN1078 Sizes: Universal S/M 50–57 cm Universal M/L 53–60 cm Universal XL 56–63 cm (select colors)

When it's time to hit the road, the Agilis MIPS offers a sporty, sleek style with comfortable features you can count on, including 32 wind tunnel vents, Coolfit anti-microbial padding, and integrated MIPS technology. The fit on the Agilis MIPS is comfortable and secure thanks to our adjustable Roc Loc 5.5 MIPS system that combines fit and positioning adjustments while integrating with MIPS technology for an added measure of protection in the event of an angled impact. The outer Hardbody shell extends to the inside of the helmet, and is molded from a tough polycarbonate thats fused permanently to the EPS foam liner using our In-Mold process to enhance durability and ventilation without excess bulk. - 32 Wind tunnel vents with internal channeling - Full-wrap in-mold polycarbonate shell with EPS liner - Coolfit anti-microbial padding - Featherweight webbing with Slimline buckle - Roc Loc 5.5 MIPS fit system

The Syntax MIPS combines a touch of European flair with slightly deeper coverage and high-performance features—all tucked into a very slim design. 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 fit is luxurious and secure, thanks to the highly adjustable Roc Loc 5 Air MIPS system that allows you to customize fit/feel for great stability and long-range comfort. Another benefit is integrated MIPS which can provide an added measure of protection from rotational forces in the event of an angled impact. MIPS - Integrated MIPS (multi-directional impact protection system)—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 CONSTRUCTION - In-mold construction - Four-piece polycarbonate interlocking hardbody shell - Full hardbody wrap SHELL TYPE - Polycarbonate shell SPORT - Cycling NUMBER OF VENTS - 25 INTERIOR/LINER TYPE - Coolfit anti-microbial padding VENTILATION TYPE - Wind tunnel vents with internal channeling GENDER - Unisex FIT SYSTEM - Roc Loc 5 Air IMPS MIPS IMPACT LINER TYPE - EPS CERTIFICATION - US CPSC bicycle for ages 5+ - EU: CE EN 1078

The most advanced piece of technology on your bike is the one attached to your shoulders. That's why the new Mode helmet is designed to fit just right and keep you feeling, and looking cool. Its clean, elegant lines deliver more than modern style, and they integrate hidden vents for increased airflow, so you stay cool even when the temps rise. A seamlessly integrated fit adjustment system and personalized sizing lets you create a fit that's, well, dialed. Take on the city, head on, with Mode. Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older. - Hidden vent integration helps cool you off when the heat is on. - The integrated fit adjustment system delivers a personalized fit and occipital base adjustment. - Mode is offered in three shell sizes and two headforms for distinctive fits: Classic SBC headform and Round Fit headform. - Mode earned the highest 5-Star Virginia Tech® Helmet Rating™ from the internationally renowned Virginia Polytechnic Institute and State University. - Whether you're riding acoustic or electric, Mode passes the Dutch e-bike Standard NTA8776 so you can ride with confidence. - Reflective decals and Stix Light compatibility makes for seamless day and nighttime visibility. - MIPS-equipped and ANGi ready.

The most advanced piece of technology on your bike is the one attached to your shoulders. That's why the new Mode helmet is designed to fit just right and keep you feeling, and looking cool. Its clean, elegant lines deliver more than modern style, and they integrate hidden vents for increased airflow, so you stay cool even when the temps rise. A seamlessly integrated fit adjustment system and personalized sizing lets you create a fit that's, well, dialed. Take on the city, head on, with Mode. - Hidden vent integration helps cool you off when the heat is on. - MIPS-equipped and ANGi ready. - Mode earned the highest 5-Star Virginia Tech Helmet Rating from the internationally renowned Virginia Polytechnic Institute and State University. - Reflective decals and Stix Light compatibility makes for seamless day and nighttime visibility. - The integrated fit adjustment system delivers a personalized fit and occipital base adjustment. - Whether you're riding acoustic or electric, Mode passes the Dutch e-bike Standard NTA8776 so you can can ride with confidence.

The classic half shell open-face helmet and therefore ideal companion for trail & XC tours. The Trail XC provides all-round protection with Inmould technology in which the helmet is directly connected with the absorbing EPS material. The high number of ventilation openings, as well as the placement angles and integrated channels, provide lots of air circulation and a great cooling system. The adjustment unit with precision interlocking, ErgoFit Ultra creates a comfortable and precise fit both vertically and horizontally, guaranteeing a good fit and a high degree of wearing comfort. The visor is removable and the lining is washable. - Inmould technology, external and internal ventilation channels - Removable visor - Dial adjuster with precision interlocking - ErgoFit Ultra system for horizontal and vertical adjustment - Double-Inmould, 360=deg; Inmould shell - Adjustable straps - EN1078, CPSC, KC Sizing: - X-Small = 49 – 54cm - Small/Medium = 54 – 58cm - Medium/Large = 58 – 62cm - X-Large Wide = 58 – 62cm

Be so bold in the all-new Ambush 2. Fully redesigned from the buckle up with essential features for next-gen trail riding, the Ambush 2 channels ample ventilation through modern styling, with a superb fit and dialed eyewear integration. - Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older. - Sized to drop in with a highly customizable fit and precision adjustment. The Ambush 2 features our SBC Integrated Fit system and adjustable Tri-Fix splitters to provide a dialed fit. - Fine-tune your vision using the Ambush 2’s Occipital Base Adjustment to precisely adjust how the helmet sits on the brow for seamless integration with goggles and glasses for an unrestricted view down the trail. - Innovative sunglasses storage with hidden rubber flaps maintains a secure, rattle-free fit, keeping your glasses safely stored when you need to get them out of the way during long climbs or moments of rest. - Computational Fluid Dynamic design integrates the maximum volume of internal channeling for optimal airflow through the helmet, drawing heat away from the head. 4D brow cooling, which provides a gap between the helmet and forehead, draws airflow into internal air channels at every speed. - Integrated fixed visor with a breakaway feature provides increased trail vision and a seamless interface with eyewear while effectively channeling airflow through the helmet for superb ventilation. - Strategically optimized dual-density EPS foam eliminates bulk and reduces excess weight. - The Ambush 2 earned the highest 5-Star Virginia Tech Helmet Rating from the internationally renowned Virginia Polytechnic Institute and State University. - Features the MIPS SL solution with our exclusive perforated backing. Integrating MIPS technology within the helmet padding reduces moisture retention while increasing breathability. - This helmet is ANGi ready, with a fit system mount designed for easy integration with our ANGi crash sensor. - Average weight: 360 grams (medium).

- Compass fit - 11 vents with increased air flow - Compatible with click-mount light - Lightweight - Integrated brim - Lay flat strap dividers - Compression molded pads - Light & durable dual shell - Snowsport knit compatible - Average weight: 350g Sizing: - Small = 52 – 55.5cm - Medium = 55.5 – 59cm

Anywhere, any day. A true go-anywhere helmet with a low-profile lightweight design, extra rear coverage, and a mini visor for a relaxed, modern look for all rides. Where it thrives: Gravel roads, the open road, up and down hills What it's built for: Comfort, durability Highlights: - MIPS equipped and extra rear coverage for increased protection - 23 air vents / one-piece visor - One-handed adjustment for easy fitting

Flight Pro Helmet Prpus from Fox Racing.

Safety for dirt jumps, BMX, skate, and more. The Flight Pro Prpus Helmet brings that high level of safety to any rider or thrill-seeker looking to level up their protection without sacrificing style. It features Mips® technology, an interior shape that sits lower on your head to improve overall fit, and a 360° Fit System to adjust comfort. The FIDLOCK buckle system clicks open easily for helmet removal, and the helmet comes with two XT2® anti-microbial comfort liners, so you're set for spares when you need 'em. E-bike riders, electric scooters, and one-wheel daredevils are covered, too. Key Features - Now featuring Mips® technology - Multi-density EPS - 360° Fit System provides a precise fit - FIDLOCK SNAP magnetic buckle closure Specifications - Mips® impact protection system is designed to reduce rotational forces in a crash - Multi-density EPS for high and low-speed impacts - 360° Fit System provides a customized, secure fit - Updated interior shape sits lower on the head for a confidence-inspiring fit - Includes two XT2® anti-microbial comfort liner sets - FIDLOCK buckle closure system