Cozy and warm down-filled socks for a night in a sleeping bag or for toasty feet in time spent in your tent. Made for all that want to keep their feet warm after a long day on the trail, compact and light to fit in any pack. Should be standard gear for anyone heading out into the cold and store easily with your sleeping bag so they are not forgotten. Exped's Down Socks are made with five individually down filled cross baffles that prevent cold spots. The special toebox keeps the down in place at the most sensitive spot. An elastic heel band and cuff hold the Down Socks snug on your foot.