Did you know that you lose 40 - 45% of your body heat from your head? That is enough heat loss to make the difference between a great day on the water or being cold and uncomfortable. The Mystic Neoprene Beanie is the smart water person solution to beating the chill while looking cool. Made with three layers of warmth, a soft polar lining on the inside, lightweight foam in the middle, and M-flex neoprene on the outside, these beanies are very warm indeed. Tie the handy built-in bungee loop to your wetsuit leash, so you never lose it. If there is any chance of getting cold, you'll want to have your beanie on board. Wear it when you need it; take it off when you don't.