Acorn Women's Chinchilla Collar Indoor / Outdoor Slip-On Slippers Fleece Faux fur lining provides a cozy feeling along with superior warmth and comfort. Lofty Acorn memory foam midsole and EVA foam layer cushions each of your steps. Enhanced heel and arch stabilizes and supports your stride for durably comfort. Polyester and acrylic upper and upper lining, faux chinchilla sockliner, memory foam insole... Memory foam and EVA midsole. Heel Height: 1. Care: Machine wash on gentle cycle, cold, etc.