Kokatat Surfskin Head Heater - Add a layer of insulation where it counts the most, your head! The Surfskin Head Heater is an ultra-lightweight insulating layer that fits comfortably on your head or under a helmet. Offering equivalent warmth to 2.5mm neoprene, the outer fabric is a wind and waterproof barrier laminated to a cozy fleece lining for comfort next to skin. It sheds water to minimize evaporative heat loss, making the fabric ideal for insulation. The 4-way stretch provides a comfortable, non-restrictive fit. The fabric is also odor and itch resistant, non-chafing, and fast-drying. It features a low-profile strapless design that is guaranteed to keep your ears warm!