Micro suede + Super Soft Faux Fur LiningRubber sole80-D HIGH-DENSITY MEMORY FOAM INSOLE: Most of the Slipper Booties use 40-D or 50-D Memory foam, EuropeanSoftest uses 80-D high-density memory foam that really molds to your feet and retains the shape.A layer of 10mm 80-D memory form + a layer of 7mm high elasticity special rubber + a layer of 7mm high elastic special sponge heel. All these 3 layers of filling give you absolutely enough support and reduce foot stress.WARM & THICKER : Because of the thickened thicker fleece lining and faux fur collar, we recommend you choose one size up for more comfortable fitting or if you are between sizes. Slippers should be 0.5 or more inches longer than your feet.STYLE: : Easy slip-on, full coverage style hugs your foot in warmth and comfort.Fully lined with super soft faux fur, just as cozy and comfy as real fur, these slippers can offer you a new wearing experience, they’ll keep your feet warm and comfortable on cold autumn and winter nights.INDOOR & OUTDOOR USE: With premium material, anti-slip rubber outsole, you will have safe, secure footing on any indoor and outdoor surface. You can walk anywhere from bedroom to briefly outside the house; perfect for fetching the morning mail or watering the lawn.SATISFACTION GUARANTEE: With EUROPEAN SOFTEST, you’re taking no risk with your purchase.Made of quality, durable material, these slippers are machine washable, so you can easily remove stains or dirt. The micro suede upper material is also easy to brush off dirt. All-season slippers pamper your feet with every step, from house and bedroom to spa and garden. Care: Machine wash cold; air dry.