An updated twist on the classic headband. Using modern fibers the Dynamax™ Contoured Headband is able to deliver more warmth, wicking, wind block, and comfort in a lightweight piece, and is contoured for full ear coverage. With Dynamax™, the feel is unreal. Seirus'® exclusive dual-density, micro denier Thermax® material is warm and comfy and unbelievably thin. Recommended for: outdoor adventures in the cold (running, hiking, biking, commuting, and whatever else you do outdoors)