Isotoner Signature Woodlands French Terry Slipper Black 8.5-9 Polyester French Terry with Soft Sherpa fleece lining - 100% Polyester Marled french terry fabric with allover sherpasoft lining Durable indoor/outdoor outsole - wear inside/outside. Enhanced Heel Cushion is designed with special EVA heel cushion to absorb impact Machine wash cold water with like colors. No bleach. Dry flat away from heat. Do not tumble dry, iron, or dry clean