Span Lil Ripper Sidetrack Sidetrack Mips SIZES XS, S T, UC UC, UY UY TOTAL VENTS 10 VENTS 10 VENTS 15 VENTS 15 VENTS COMPLIANCE CPSC BICYCLE ASTM F1492-08 (SKATE) CPSC BICYCLE CPSC BICYCLE CPSC BICYCLE MIPS MIPS (MULTI-DIRECTIONAL IMPACT PROTECTION SYSTEM) - A LEADING SLIP PLANE TECHNOLOGY DESIGNED TO REDUCE ROTATIONAL FORCES THAT CAN RESULT FROM CERTAIN IMPACTS CONSTRUCTION ABS HARD PLASTIC SHELL WITH EPS LINER 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. 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. VISOR SNAP-IN VISOR SNAP-IN VISOR FIT SYSTEM ACTION FIT - DESIGNED FOR STREET AND SKATE HELMETS, THIS STREAMLINED FIT SYSTEM OFFERS AN ADJUSTABLE, SECURE FIT WITH THE TURN OF A DIAL ACTION FIT - DESIGNED FOR STREET AND SKATE HELMETS, THIS STREAMLINED FIT SYSTEM OFFERS AN ADJUSTABLE, SECURE FIT WITH THE TURN OF A DIAL ERGO FIT - SLEEK, EASY-TO-USE DIAL SYSTEM FOR ONE-HANDED ADJUSTMENTS ERGO FIT - SLEEK, EASY-TO-USE DIAL SYSTEM FOR ONE-HANDED ADJUSTMENTS RETENTION SYSTEM SMARTLOCK NO-PINCH SIDE BUCKLE NO-TWIST TRI-GLIDES: QUICK-ADJUST FASTENERS THAT HELP KEEP STRAPS FLAT AND PROPERLY POSITIONED PINCHGUARD BUCKLE - A SPECIALLY DESIGNED BUCKLE FOR KIDS' HELMETS THAT PREVENTS PINCHING NO-TWIST TRI-GLIDES: QUICK-ADJUST FASTENERS THAT HELP KEEP STRAPS FLAT AND PROPERLY POSITIONED PINCHGUARD BUCKLE - A SPECIALLY DESIGNED BUCKLE FOR KIDS' HELMETS THAT PREVENTS PINCHING WEIGHT 423 GRAMS (SIZE S) 221 GRAMS (SIZE T) 299 GRAMS (SIZE UY) 309 GRAMS