<ul><li>Redesigned high-density ABS shell</li><li>Sweat-saver terry cloth liner</li><li>10-vent classic skate shell with bigger vents for better air flow</li><li>Dual-density foam liner for 360 impact protection</li></ul><br><br>The Liquid Force Hero Helmet is the go-to functional and fashionable, CE-certified helmet. The Hero features a newly redesigned high-density ABS shell and a sweat-saver terry cloth liner. Bigger air vents and new art will keep you feeling and looking cool. Be a "hero", be safe, and wear a helmet.. Sweat-saver terry cloth liner. 10-vent classic skate shell design. Impact-rated high-density ABS shell. CE-certified EN 1385 watersports standard. Dual-density foam liner for 360 impact protection. Sizes (circumference): S(20.6"-21.3"), M(21.4"-22.0"), L(22.1"-22.9"), XL(23.0"-24.0")