Muk Luks brings men the convenience and comfort their feet deserve. Made with a polyester upper and a polyester flannel lining, these slippers are sure to keep your feet nice and cozy year round. They are so comfortable, they will be your GO-TO slippers. Available in Men's sizes S (8-9), M (10-11), and L (12-13) in plaid. Hand wash in cold water with like colors, no bleach, and lay flat to dry. Made in China. Material: Polyester.