Gravofoam SBR Foam Roll Sheet is a high quality, long wearing, flexible foam that has various applications such as insulation, cushioning and seal. These rubber shoes are made of Styrene-Butadiene Rubber (SBR) foam and consists of excellent resistance to abrasion, impact, and weather conditions and these are capable for industrial and commercial use. https://www.gravofoam.com/product.php/sbr-foam