Originally developed for camping in the Maine woods, these wool-blend slipper socks are so comfortable that Sherpa guides on Mount Everest now pack them for base camp. Delivering lightweight warmth, they're perfect footwear no matter where your travels take you. A memory-foam layer tops EVA insoles for support and cushioning. Leather sidewalls and outsoles are durable enough to wear at a campsite, but soft enough for indoor wear.
Sizes XXS (women’s 5 1/2–7), XS (women’s 7 1/2–8 1/2, men’s 6–7), S (women’s 9–10, men’s 7 1/2–8 1/2), M (women’s 11–12, men’s 9–10), L (men’s 10 1/2–11 1/2), XL (men’s 12–13)
From National Geographic:This time of year, we get a lot of returns and are doing our best to process them as soon as possible. We received your exchange on 1/4/12 and the it was completed on 1/19/12.