Our Mountain Hat is designed to keep you comfortable in the cold and pouring rain. It is made of tough nylon with a waterproof coating and taped seams, so you won't even notice its raining around you, and a micro fleece lining and ear flaps ensure you're snug and warm, whether you're up a mountain or walking in the snow. We've given our Mountain Hat a close fit to keep the wind out, so this is a perfect choice for miserable weather protection.