The Turtle Fur Polartec Windbloc Frost Liner is perfect for giving you added warmth under you helmet or just some protection when out in the cold. The windproof design help keeps your ears and head from getting too cold and a DWR prevents any moisture from hanging around and chilling you down. The Turtle Fur Polartec Windbloc Frost Liner fits real comfortably and provides insulation for a warmer day out on the mountain. [+]