Sorel CARIBOU Womens Waterproof Boots Black. These boots feature a Nubuck upper material and a fabric lining. The sole is made of rubber and they have a pull-on closure. Key features include waterproofing and a warm lining. The boots have a round toe shape and a regular shoe width. They weigh 1.4 KG and have a low heel height (2.5-4.9cm). The shoe shaft height is mid-calf and they are classified as snow boots. Product Code: 1003812011.