UGG rhubarb boots. The most popular on the Internet 1: Fabric: First-layer waterproof cowhide frosted 2: Inner lining: Adopt sweat-absorbent and breathable first-layer pigskin 3: Foot pads: Molded latex ten-layer cowhide 4: Outsole: High-density rubber hair combination Bottom. Good resilience. Not tiring on the feet. Resistant to folding and wear. Color: black. Earthy yellow. Size 35-40.