The Holt helmet offers all-season certification, giving you the versatility to use one helmet for any activity, whether it's in the terrain park, skate park, or backcountry kicker. With Smith's bombshell construction, you can confidently tackle any adventure without worrying about wear and tear. Strategically placed vents ensure optimal airflow, keeping your goggles clear of fog. Want to enhance your experience? Choose your own audio, or remove the ear pads for a cooler summer ride. Protection Advanced ABS construction for increased impact protection and all-around durability Dual certification all-season use Certification: ASTM F 2040, CE EN 1077:2007 CLASS B, CPSC, CE EN1078 Fit / Integration Designed for ultimate integration with Smith goggles for maximum comfort and venting AirEvac ventilation system integrates with Smith goggles for fog-free lenses Self-adjusting lifestyle fit system flexes to match your head shape for maximum comfort Bombshell ear pads for form-fitting comfort Features 14 fixed vents for consistent airflow Removable goggle strap lock for streamlined shell when goggles are worn under helmet Audio system compatible Weight (Size M): 19 oz / 550 g