Atomic - Revent+ - Ski helmet. Design: In-Mold technology|Outer shell: polycarbonate shell|Inner shell: EPS foam (expanded polystyrene)|Padding: washable|Padding: antibacterial|Padding: chin pad|Padding: removable|Adjustment system: at the back of the head|Adjustment system: adjustable chinstrap|Venting: ventilation openings|Head circumference: 51 - 55 cm; 55 - 59 cm; 59 - 63 cm; 63 - 65 cm|Weight reference: Size S|Extras: audio compatible|Extras: eyewear strap holder|Includes: incl. helmet bag