The slider upper is crafted from 100% recycled polyester, excluding trims. The recycled polyester in this product was created by reprocessing existing materials. Durable recycled polyester upper. Polyester lining. Chunky EVA outsole. Heel height: 3.5cm/1.4in. Moulded footbed. Calvin Klein monogram on the strap. Runs true to size. Country of origin: China. Colour: grey