O'Neal 0623-631 3 Series Radium Helmet (Black/White, X-Small) Shell is constructed with durable Polycarbonate. Shell weight (size large): 1500grams (50) Ultra-plush removable/washable padded liner keeps you cool and dry by wicking away sweat Adjustable visor design. Intake and exhaust vents for ventilation and cooling Durable multi-colored clear coated graphics. Replacement parts available Meets DOT, ECE 22-05 and AS/NZS safety standards