Made of ultimate comfort premium quality polyester lining and acrylic outer knit pattern or design; Womens size large fits shoe size 9.5 - 11; Non slip gripper bottoms make these perfect indoor slipper socks for use on hardwood, tile, and other smooth floors; Machine wash cold or hand wash, air/hang dry; Enjoy lounging in these excellent soft slippers in the home, office, dorm room, or as a gift for a friend or loved one.