Designed to be enjoyed year-round, these ultra-comfortable slippers in grey are made from washable 100% cotton fibers and a durable suede-like sole. Woven on slow Japanese looms, these slippers have a soft, cashmere-like weave that feels like a plush blanket on the skin. Designed for indoor use. Soft soles will wear over time if worn on rough surfaces. Made in Japan. Sizing: Footbed length: 10.6" L Women 10-11 / Men 9.5-11.5 (US sizes) Materials: 100% cotton with a polyurethane sole Please let me know if you have any questions!