Quiksilver Helmet Theory black 2019/20 - light and very reliable Quiksilver helmet - weight approx. 450 g - European safety standard: CE-EN1077: 2007 - has a possibility to adjust the circuit by means of BOA quick clamping system :-) - EPS foam layer - ventilation holes - removable ear protectors - eyelet for attaching goggles - Fidlock® - allows to unfasten the buckle with one hand even in gloves :-) - pleasant fleece at the chin