Second pair I have purchased! First pair was a Christmas Gift from Hubs. I wear them as Winter bed socks. Turn inside out to wash. The first time a little fleece does shed so wash them with towels or jeans. After that they are fine, but inside out prevents pilling. They are very toasty, for my always cold feet. There are over fifty patterns according to Pudus & availability for men & children. They have a rubberized pattern on the bottom, I have never slipped in them. Great present! Good purchases, might get more. MaryAnn Coy-Schuerger.