The Brentwood Helmet from Bern Unlimited is one of the lightest helmet you are liable to find. With the exclusive Zipmold Foam, a liquid foam injection process provides a impressive weight to strength ratio for a lower profile and lighter helmet. Featuring a interchangeable cold and warm weather liners for use in any season, a Sink fit design to have this helmet actually on your head not resting on top. Perfect for any snow-time adventure that you find yourself in.