Keeping warm in winter is essential to enjoying your game of golf. The new Windward beanie hat from Calvin Klein does exactly by keeping your head warm. The outer layer is acrylic with the soft polyester lining as the inner layer. This changes when the hat is reversed. You are able to change your look at anytime you which to do so. The hat either shows one colour or if reversed shows a two-tone colour with the CK logo in large letters on the front. Either way, you have it this is very comfortable and is available in one size fits all (OSFA).