buff windproof beanieThe unisex Windproof Beanie L XL Solid Black unisex Buff outdoor hat is the ideal companion for all your activities in cold weather! Thanks to its GORE TEX WINDSTOPPER technology, you will be protected from wind, humidity and cold for long days in the mountains. With its breathable microfleece lining, it helps wick moisture to keep your body temperature stable during outdoor sessions of skiing, trail riding, mountaineering, cycling, etc.