Designed with absolute comfort in mind for rock and snow lovers, the innovative helmet-compatible construction of the ThermoNet(R) Headband makes it an essential for cold weather climbing and winter sports. The simple, streamlined design measures a comfortably compact 10cm in width for a super-low profile, and bonded seams mean no chafing when you're in motion. Not only is it compact, but PrimaLoft(R) insulating fibers offer exceptional warmth and moisture-wicking for fast and light adventures. Oh, and it's made using 58% recycled content. Low weight, low impact.