For those cold winter days around the house there's only one thing better than a warm pair of sox, and that's a warm pair of slipper sox. This is especially true if you have hardwood floors and don't want to slip and fall.I ordered this 3-pack as a replacement to a previous pair; they are indeed nice and warm, and the non-slip tread on the bottom works really well. I've washed them and they have held up well. My only (minor) complaint is that I wish they came up higher on the leg; they just cover the top of the ankle.