The S1 Lifer Brim Helmet is one of the best fitting and safest helmets on the market

whether you're maneuvering through a slow

Adjustable for dual crown (Downhill) AND single crown mountain bikes

providing a slick and waterproof exterior and max visibility

Flatlock Seams for Smooth ComfortFlatlock stitching ensures seams lie flat against the skin to reduce rubbing and irritation

Hyper Fast Men's Eco Swimrun Wetsuit size:SM The S1 Lifer Brim HelmetGARMENT FEATURES: Yamamoto #39 SCS neoprene Multi dimensional stretch The thinnest BRS materials on the back waist Low modular tech Ergonomic designed collar Stable trinity support system Ultra quick Drying Capacity Eco based & Hypoallergenic materials 2 year warranty NEOPRENE THICKNESS: Chest: 1. 5mm Upper legs: 1. 3mm Back waist: 0. 8mm