Gore Bike Wear Universal Thermo Beany Main Fabric: 84% Polyamide, 16% Elastane, Headband: 100% Polyester Imported Essential: a warming, extremely elastic cap that can be worn under the helmet. Doesn`t irritate or restrict the wearer, and is highly compact for easy packing. Thermo-stretch functional fabric Flat-lock seams Reflective logo on front Reflective piping on back