The trainer upper is crafted from 100% recycled polyester, excluding trims. The recycled polyester in this product was created by reprocessing existing materials. Recycled polyester upper. Recycled blend comfortable foam insock. Recycled blend polyester mesh lining. Rubber outsole. Heel height: 3.2cm/1.3in. Suede trim. Calvin Klein signature logo at the side, tongue and ankle. Runs true to size. Country of origin: China. Colour: white