VERSATILITY AND INSULATED WARMTH The Nike Performance Reversible Kids' Knit Hat is made with Therma-FIT fabric that locks in heat and offers two great looks for versatile style. Benefits Therma-FIT fabric to help keep you warm and insulated Reinforced top seams for durability Plain brushed fleece on one side and allover graphic on the other for versatile style Product Details Fabric: Therma-FIT 100% polyester Machine wash Imported