Hub Buying Options Buying Options SIZES UA, UW S, M, L TOTAL VENTS 14 VENTS 15 HELMET VENTS, 3 BROW PORTS VENTILATION no data OVERBROW VENTILATION FEATURES INTAKE PORTS ON THE BROW OF THE HELMET TO USHER IN COOL AIR AND PUSH IT THROUGH THE AIR-CHANNEL MATRIX FOR FULL-HEAD VENTILATION COMPLIANCE CPSC BICYCLE CPSC BICYCLE MIPS INTEGRATED MIPS DESIGNED TO REDUCE ROTATIONAL FORCES THAT CAN RESULT FROM CERTAIN IMPACTS. INTEGRATING THE MIPS SLIP PLANE INTO THE FIT SYSTEM, REDUCES COMPLEXITY AND WEIGHT FOR A COMPACT, BETTER VENTILATED HELMET THAT FITS MORE CLOSELY TO THE HEAD. no data 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. 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. FEATURES LED: 20-LUMEN RECHARGEABLE LED BUILT INTO REAR OF HELMET - SOFT BRIM VISOR - NO-TWIST TRI-GLIDES: QUICK-ADJUST FASTENERS THAT HELP KEEP STRAPS FLAT AND PROPERLY POSITIONED SOFT-BRIM VISOR WITH REFLECTIVE TRIM FIT SYSTEM ERGO FIT LED - SLEEK, EASY-TO-USE DIAL SYSTEM FOR ONE-HANDED ADJUSTMENTS (INTEGRATED WITH MIPS LAYER) FLOAT FIT - A MINIMALIST, LIGHTWEIGHT FIT SYSTEM WITH AN EASY-TO-TURN RUBBER OVERMOLDED DIAL FOR ADJUSTMENTS (INTEGRATED WITH MIPS) INTERIOR SWEAT GUIDE PAD DESIGN PULLS MOISTURE AWAY FROM THE BROW PAD AND AWAY FROM EYEWEAR PERFORATED PADDING WEIGHT 390 grams (size U) 365 GRAMS (SIZE M)