This cold weather fleece hat features "Soft Touch" polyester fleece for great feel and comfort. It also gives you the extra warmth of 3 heat chambers.
Reusable, microwaveable gel packs (included) warms the blood circulating through the sides and back of your head.
Three reusable gel packs are included with each purchase (two for the side warmth chambers and for the chamber at the back of the head).