Soft sweater knits and a classic shape make Muk Luks® john slippers a must. Furpa lining warms your toes while easy slip-on style lets you relax. The indoor/outdoor sole comes in handy, too. Hand wash in cold water, no bleach, dry flat. Imported. - tpr sole- 100 percent polyester insole- 100 percent Acrylic upper- 100 percent polyester lining- no heel- navy/solid, grey/solid, ebony/solid- us men's sizes s (8-9), m (10-11), l (12-13)