Redefining open-face mountain bike helmets, the Dropframe Pro Helmet has earned Virginia Tech\\\'s best rating (5 STARS) in their Bicycle Helmet Ratings program with the best rating of any helmet they have ever tested. Superlight and extremely comfortable, it\\\'s the choice for trail riders seeking more coverage, more confidence, and more fun. This game-changing open-faced enduro helmet features MIPS™, our dual-density Varizorb™ EPS liner, and increased coverage for the ears, jaw, and back of the head. This MTB helmet provides the most complete coverage we offer in an open-face helmet. Key Features Proven MIPS™ impact protection system reduces rotational forces in a crash Dual-density Varizorb™ EPS liner is meant to provide improved impact protection 8 Big Bore vents and 7 exhaust vents keep you cool and aid in moisture management Fixed visor is positioned perfectly for maximum air flow Fidlock® SNAP helmet buckle provides quick entry and exit Removable antimicrobial and moisture wicking liner Includes additional pads for a custom fit About Fox ClothingFox Head, Inc. is headquartered in Irvine, CA, with additional offices in Morgan Hill, CA, Calgary, Canada and Barcelona, Spain. The Fox brand is the most recognized and best-selling brand of motocross apparel in the world today. Fox built its business by developing clothing for high intensity, physically demanding motorsport of motocross. Today, Fox remains a family owned and operated business, with the second generation working full-time at the company. During the last three decades, Fox Racing has become an international leader in the youth lifestyle clothing market with its famous Fox Head logo seen worldwide. Fox Helmet Sizing SMLXLHat Size52-54 cm54-56 cm55-58cm58-60cm Helmets Buying Guide