I was looking for a pair of light weight and warm slippers. These filled the bill. These are a heavier version of slipper-socks but lighter than typical bedroom slippers. The sole (which is lightly foam padded) has non-skid "dots" and the inside is white pile lined which really makes these cozy and they are high enough to keep your ankles warm. So far they stay-up just fine but I have only had them a short while. They fit well. I wear and 8.5 and bought a large. The tag says large fits 7-10 so that was just the perfect size for me. Cable stitched knitting runs on the outside. These are machine wash and dry per tag - polyester. I am happy with this purchase. A fair value for the money.