NIKE Reversible Therma-Fit Women's Running Hat Therma-Fit Fabric - Provides warmth and insulation in those cold runs. Reflective - A reflective logo and detailing ensure you remain visible in low-light conditions. Brushed Fleece - A soft brushed fleece will keep your head warm and incredibly comfortable. Reinforced Top Seams - For durability and reduce chaffing. Reversible - Allows the wearer to reverse the headband for versatile look.