• Weather battling face & neck protection • Seirus' exclusive Dynamax – dual density, micro denier Thermax • Traditional bandana cut The warmth, stretch, and wind block of Dynamax™ in a stylish bandana triangle-cut. The Dynamax™ Bandana provides sleek comfortable face protection in a lightweight piece that is the perfect addition to your kit. With Dynamax™, the feel is unreal. Seirus'® exclusive dual-density, micro denier Thermax® material is like nothing you've ever experienced.