CONCEPT X Helmet: The kite/surf/kayak/wakeboard helmet from Concept X is the first choice for anyone who loves their sport and wants to practice for a long time. The helmet has an exceptionally good fit thanks to the continuous adjustment options on the chin and - especially important - at the back of the head. The special soft EVA foam protects the head and is at the same time extremely light, so that you almost do not feel the helmet. It is one of the lightest helmets on the market and weighs only 400 grams! In addition, the Concept X helmet has removable, integrated earmuffs. Features: ABS outer shell, aerodynamic 11-vents shell design, heat pressed soft EVA impact absorption liner, comfortable shock resistance, adjustable chin and back-of-head fittings, removable molded soft EVA close ear protector, ergo covered soft EVA ear shell. CE EN 1385 Water Sport Safety Standard. Sizes: XS 47.5 - 51.5 / S 51-53 / M 53.5-56 / L 55.5-58 / XL 57.5 - 60 cm