The visor design effectively prevents sunlight when sporters paddling underground in the sun. High impact ABS outer shell.EVA impact absorption liner.Meets CE EN 1385 water sports safety standard. Comfortable, waterproof and quick dry EVA liner.EVA liner can absorb and buffer impact energy. Adjustable back of head dial.X-Large(23.6-24.4in)|(60-62cm).Large(22.8-23.6in)|(58-60cm). Medium (22.0-23.6in)|(56-58cm). Small(21.3-22.0in)|(54-56cm) .Helmet weight:450g. Suitable for whitewater kayak, rafting, SUP, canoeing,surf,kitesurfing,kiteboard and other watersports. UPC 742985653658 ASIN B0CYZQSTBD Size Large Color Matte White Brand Name ipoob Model Name IP-SLH01 Item Weight 440 Grams Manufacturer ipoob Inner Material Ethylene Vinyl Acetate (EVA) Item Type Name watersports Outer Material Acrylonitrile Butadiene Styrene (ABS) Additional Features Visor Included Components no Warranty Description 1 Age Range Description Adult Recommended Uses For Product Water sports