Effective against wind chill enhanced thermal protection from cold wind for your head this dhb windslam windproof headband is constructed from a unique wind barrier membrane to dramatically kill wind chill effect so you can ride harder for longer the internal face of the fabric is a warm breathable lightweight fleeced polyester designed to enhance rider comfort with an ideal fit to be worn under your helmet the dhb windslam windproof headband has a soft and comfortable feel with no int