Specs: Weight: 25 oz / 700 g (size m) Design/Technology: ABS construction for enhanced durability and impact protection EPP foam core engineered for premium durability in areas with repeated impact XT2® antimicrobial lining to control sweat-activated odor Ear pad and lining reduce noise interference Fidlock® buckle on strap for one-handed operation Full Koroyd® coverage to absorb energy and help protect from impact Built to accommodate Smith® goggles for optimal comfort and ventilation Safety Features: MIPS® Brain Protection System to minimize rotational force caused by angled impact to head Certification: ASTM F 2040, CE EN 1077:2007 Class B, FIS RH 2013 Compatible with Slalom Chin Guard (sold separately)