Sixer MIPS 4Forty 4Forty Air Spark 2 Nomad 2 Buying Options Buying Options Buying Options Buying Options Buying Options Customer Reviews 4.6 out of 5 stars 565 4.7 out of 5 stars 533 — — 4.8 out of 5 stars 67 SIZES S, M, L S, M, L S 52–56 cm, M 55–59 cm, L 58–62 cm, XL 61–65 cm (select colors) Universal S/M 50–57 cm, Universal M/L 53–60 cm, Universal XL 56–63 cm (select colors) Universal S/M 52–57 cm, Universal M/L 53–60 cm TOTAL VENTS 26 HELMET VENTS, 4 BROW PORTS 15 VENTS 14 VENTS 13 VENTS 15 VENTS VENTILATION DUAL FLOW VENTILATION FEATURES AIR PORTS ALONG THE BROW TO PROVIDE VENTILATION AND HELP DEFOG GOGGLES no data no data no data no data MIPS MIPS-EQUIPPED - 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. 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. MIPS (integrated with fit system) MIPS (integrated with fit system) MIPS (integrated with fit system) CONSTRUCTION FUSION IN-MOLD POLYCARBONATE SHELL. PROGRESSIVE LAYERING: THE PROCESS OF ENGINEERING A HELMET LINER WITH VARIABLE EPS FOAM DENSITIES TO BETTER MANAGE THE TRANSFER OF ENERGIES AFTER SOME IMPACTS EXPOSED POLYCARBONATE ROLL CAGE 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 Fusion In-Mold Polycarbonate Shell Fusion In-Mold Polycarbonate Shell VISOR 4-POSITION ADJUSTABLE VISOR: THE NO-SLIP DESIGN ALLOWS ON-THE-FLY ADJUSTMENTS SO THE RIDER CAN POSITION VISOR AT DESIRED ANGLE WITH A SIMPLE TUG UP OR DOWN GOGGLEGUIDE ADJUSTABLE VISOR ACCOMMODATES BOTH GOGGLES AND GLASSES ADJUSTABLE VISOR ALLOWS FOR SUN PROTECTION AND EASY GOGGLE STORAGE. ADJUSTABLE VISOR ALLOWS FOR SUN PROTECTION AND EASY GOGGLE STORAGE. ADJUSTABLE VISOR ALLOWS FOR SUN PROTECTION AND EASY GOGGLE STORAGE. FIT SYSTEM FLOAT FIT RACE - A STATE-OF-THE-ART LIGHTWEIGHT FIT SYSTEM FEATURING SEAMLESS INTEGRATION WITH MIPS, AN EASY-TO-TURN DIAL, WIDE-RANGE VERTICAL ADJUSTMENT AND PADDED WIDTH-ADJUSTABLE CRADLES FLOAT FIT A MINIMALIST, LIGHTWEIGHT FIT SYSTEM WITH AN EASY-TO-TURN RUBBER OVERMOLDED DIAL FOR ADJUSTMENTS (INTEGRATED WITH MIPS) FLOAT FIT - A MINIMALIST, LIGHTWEIGHT FIT SYSTEM WITH AN EASY-TO-TURN RUBBER OVERMOLDED DIAL FOR ADJUSTMENTS (INTEGRATED WITH MIPS) Ergo Fit (integrated with MIPS) Ergo Fit (integrated with MIPS) INTERIOR SWEAT GUIDE PAD DESIGN PULLS MOISTURE AWAY FROM THE BROW PAD AND AWAY FROM EYEWEAR X-STATIC PADDING - QUICK-DRYING MATERIALS, WOVEN WITH REAL SILVER FIBERS SWEAT GUIDE PAD DESIGN PULLS MOISTURE AWAY FROM THE BROW PAD AND AWAY FROM EYEWEAR SWEAT GUIDE PAD DESIGN PULLS MOISTURE AWAY FROM THE BROW PAD AND AWAY FROM EYEWEAR SWEAT GUIDE PAD DESIGN PULLS MOISTURE AWAY FROM THE BROW PAD AND AWAY FROM EYEWEAR no data WEIGHT 410 GRAMS (SIZE M) 380 GRAMS (SIZE M) 360 grams (size M) 340 grams (370 w/MIPS) (size M/L) 280 grams (320 w/MIPS) (size M/L)