They're not socks; they're not slippers; they're comfy, warm, and attractive foot coverings! Made of a faux brushed suede exterior and lined with a soft Sherpa fleece made of 100% polyester to snuggle your feet in silky softness. (Sigh) A non-skid bottom makes Snoozies® perfect for slippery floors. On the coldest of days, Snoozies® keep your feet toasty warm and they're great in warm climates too where air conditioning keeps tile floors cool.Snoozies® are lightweight and easily fit into a pocket or bag for travel. To keep Snoozies clean, simply wash in cold water and tumble dry with low heat. And the good news is, they won't shrink!