Performance-focused open-face trail helmet Designed with input from our pro mountain bike athletes the Speedframe Pro Sense Helmet has earned Virginia Tech’s best rating 5 stars in its Bicycle Helmet Ratings program for a reason. This top-tier open-face mountain bike helmet offers a market-leading feature set to keep you protected every time you hit the trails. Key Features Mips® equipped Virginia Tech 5-star helmet rating BOA® Fit System to dial in fit FIDLOCK SNAP helmet buckle Sunglass-specific storage solution Specifications Features Mips® Air Node Protection System BOA® Fit system for micro-adjustability FIDLOCK SNAP helmet buckle provides quick and secure entry and exit while wearing gloves Removable washable Ionic+® liner is antimicrobial and manages odor while wicking moisture away from the head Optimized venting with channeled in-molded EPS provides efficient cooling One hand adjustable visor is compatible with sunglasses and goggles Sunglass-specific storage solution Size and Fit Size Sizes: small medium and large see size guide for measurements How to Dial Your Fit BOA® Fit System - counterclockwise to loosen clockwise to tighten - allows for a precisely dialed fit. Adjust while wearing the helmet Back cradle: four points of adjustment move the cradle up or down your head to ensure the best fit possible Materials and Care Care For care instructions see our Helmet Care Guide Note: Avoid exposure to aerosol sprays like bug repellent and sunscreens as they can cause your helmet's finish to peel Materials: 38% EPS 22% nylon 34% PC 4% polyester 3% POM