The Chelonia 150™ beanie is designed to hug your head in warmth and softness. Comprised of soft and warm water-resistant, midweight fleece, this beanie holds on to just enough heat without making you sweat through outdoor activities. Designed to fit comfortably under hats and helmets, this UPF 50 Sun Protective fabric also stands up to light wind and spray without weighing you down (and keeps ears toasty, too!)