Worn only a few times. Sole material Rubber Outer material 100% Rubber Inner material Merino Wool and Recycled Plastic Blend About this item SUSTAINABLE MATERIALS: The Casual Clog is knit with Rothy's signature thread, which is made from recycled plastic bottles. COMFORTABLE, WASHABLE, STYLISHLY SUSTAINABLE: At Rothy's, we believe anything is possible. That's why we invented a whole new way to make shoes—one that keeps millions of plastic bottles out of landfill. Incredible comfort. Machine washable. Luxe style.