The Oakley Mod1 Pro SL ski helmet is built with an ultra-durable Dura-Matter shell while maintaining a sustained weight. The design is inspired by the world of skateboarding, with passive ventilation ensuring excellent air circulation and limiting fogging on your ski mask. There's also the MIPS system, which effectively protects your brain in the event of oblique falls. The BOA adjustment system and Fidlock buckle ensure optimum hold throughout your descent. This FIS model is also sold with a chin strap for competitive slalom practice. Features: Removable chin strapDura-Matter ABS constructionMIPS systemPassive ventilationBOA adjustment knobFidlock buckle This description is an automatic translation. Please contact us if you have any further questions. Helmet Oakley ---Mod 1 Pro SL Matte White