Riding in cold weather is a lot more fun when you are warm and comfortable. Keeping your head and ears toasty warm it critical. The Craft Winter Hat is a snug-fitting cap that can be worn under a helmet. It is thin but a little more insulated than other super-thin skull caps. Ear coverage is very good and a wind blocking panel on the front will keep you warm even in frigid and windy conditions. As expected with Craft, the fabric is state of the art in terms of wicking and moisture transfer. Certainly one of our favorites for cold weather riding.