Functional Design for Mountain Adventures. The MOD1 Helmet is inspired by the classic skate helmet, offering a lightweight and low-profile design perfect for all your mountain adventures. It features the BOA 360 Fit System for a precise, adjustable fit, and integrated ventilation to keep you cool. The Fidlock buckle allows for easy operation even with gloves on, and the removable, washable liner and ear pads provide versatility in changing weather conditions.