The innovative helmet-compatible Buff Beanie ThermoNet was developed with absolute comfort in mind for rock and snow enthusiasts, making it an essential companion for climbing and winter sports in cold weather. The simple, streamlined design offers 4-way ultra-stretch and bonded seams for an ultra-flat profile and ultimate comfort. Not only is it compact, but the single-layer PrimaLoft ThermoNet technology provides exceptional warmth for fast and light adventures.