Bern Watts Bike Helmet meets ATSM F 2040, CPSC, and EN 1078 Safety Certifications. It features low profile head protection for the fashion conscious cyclist that doesn't want to look like they have a beehive on their head. The fit system customizes to the shape of the back of the head for comfort and stability. There is a winter liner which can be purchased separately allowing for winter biking or ski/snowboard use. The Bern Watts Bike Helmet will keep the fashion conscious cyclist safe year round!