STAY EVEN WARMERThe Turtle Fur Comfort Shell Brain Shroud is a must-have for all outdoor activities. Perfect for wearing alone or as a helmet liner, the Brain Shroud provides you with a cool, dry and snug fit. It's lined at the ears with double-layer Comfort Shell. You'll love your daily activities through cool mornings and warm afternoons! Take it on the go whenever you need to, it's pocket-packable! FEATURESSingle-layer Comfort Shell performance fabric - 92% polyester, 8% spandex.UPF 50+ sun protection - blocks 97% of UV rays.Breathable and quick-drying beanie/liner.Double-layered at earsPerfect for mountain biking, cycling, hiking, kayaking, climbing and many more outdoor adventures.One size fits most.