Fox Proframe Helmet Graphic 2Leading the packThe Fox Proframe is a top-level full face helmet from the brand who knows a thing or two about helmets. The Proframe is their best seller for a reason, as it strikes the balance between protection, ventilation and weight. Fox keeps the weight down with a dual-density Varizorb(TM) EPS liner and a superlight outer shell. When the temps climb, 15 Big Bore vents direct air in and 9 exhaust ports vent the hot air out-even the antimicrobial padded inner liner is designed to be breathable. Since protection is paramount, that is taken care of by legendary MIPS(R) technology to reduce rotational forces, an ASTM downhill-rated integrated chinbar, and the Varizorb(TM) EPS liner to disperse impact forces. FeaturesMIPS(R) Technology reduces rotational forces during certain types of impactsDual-density Varizorb(TM) EPS liner disperses impact forces and keeps the weight at a minimum15 Big Bore vents with 9 exhaust ports help to keep the air flowingFixed visor is designed to channel air through the vents to aid in coolingFidlock SNAP buckle makes securing the helmet quick and easy, even while wearing glovesBreathable, antimicrobial padded liner keeps you cool and freshIntegrated chin bar is rated to ASTM downhill standards for additional peace of mindSize ChartSizeSmallMediumLargeExtra LargeHead Circumference52 - 56cm56 - 58cm58 - 61cm61 - 64cmCheek Pad Size45mm30mm45mm20mm | Fox Apparel | Proframe Helmet Graphic 2 Men's | Size Large in Black