The visor design effectively prevents daylight when sporters paddling underground within the sun. Top affect ABS outer shell.EVA affect absorption liner.Meets CE EN 1385 water sports safety same old. Relaxed, water-proof and fast dry EVA liner.EVA liner can soak up and buffer affect 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. Appropriate for whitewater kayak, rafting, SUP, canoeing,surf,kitesurfing,kiteboard and other watersports.
