J.Crew Sherpa Slippers. The indigo blue suede upper material is accented with a classic moccasin style, making these slippers perfect for any casual occasion. The slip-resistant sole provides added safety, while the sherpa lining will keep your feet warm and snug. These slippers are a size 11, making them a great fit for most men. Add them to your collection today and experience the luxury of J.Crew slippers. Treat your feet to the ultimate cozy comfort