Is warm; The warm slippers that a base is not slippery Rubber Wool fabric, slippers for the winter when it is light and is soft. A base is a rubber material of the slipper. It is good for a place and the disk work that a floor is slippery. One size about side 4.3, vertical 10.8, 2.7 inches in height. 0.38 pounds in weight. I meet shoes size approximately 6.0-8.5 man size