Rothco's Polar Fleece Watch Caps are lightweight, breathable and offer both comfort and warmth. These cold weather watch caps are used by the U.S Military and are available in over 10 colors including Foliage, Coyote Brown, Pink and more. The fleece beanies are a one size fits most sizing.
This is the best hat I have ever owned. I bought 4 more to give as gifts. It's not scratchy like wool, and it's not to tight so you can wear it all day comfortably.