Off-Road Achiever Mountain biking is a demanding sport - compromises and shortcuts when it comes to gear are never a good idea. The 4Forty is built to withstand the rigors of a trail-riding life; with generous ventilation, the comfort of Float Fit and built-in Sweat Guide, extended rear coverage, a full hard shell, adjustable visor and integrated MIPS protection. Boasting the comfort, protection and broadly capable features of helmets costing twice as much, the 4Forty is a bantamweight, all-conditions, all-kinds-of-trail champion packing a heavyweight value. SPECS 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. CONSTRUCTION FUSION IN-MOLD POLYCARBONATE SHELL - A PROCESS PIONEERED BY BELL BONDS THE HELMET&';S OUTER SHELL TO THE EPS FOAM LINER TO CREATE A STURDIER HELMET. SPORT CYCLING VISOR GOGGLEGUIDE ADJUSTABLE VISOR - ACCOMMODATES BOTH GOGGLES AND GLASSES NUMBER OF VENTS 15 VENTS INTERIOR/LINER TYPE SWEAT GUIDE PAD DESIGN PULLS MOISTURE AWAY FROM THE BROW PAD AND AWAY FROM EYEWEAR GENDER UNISEX FIT SYSTEM FLOAT FIT - A MINIMALIST, LIGHTWEIGHT FIT SYSTEM WITH AN EASY-TO-TURN RUBBER OVERMOLDED DIAL FOR ADJUSTMENTS (INTEGRATED WITH MIPS) PRODUCT WEIGHT 380 GRAMS (SIZE M) CERTIFICATION COMPLIES WITH THE US CPSC SAFETY STANDARD FOR BICYCLE HELMET FOR PERSONS AGE 5 AND OLDER