The sandal upper is crafted with 100% recycled polyester, excluding trims. The recycled polyester in this product was created by reprocessing existing materials. Recycled polyester webbing upper. Natural foam rubber insock. Recycled blend cotton lining. TPR outsole. Heel height: 4.5cm/1.8in. Calvin Klein jacquard logo on the strap. Runs true to size. Country of origin: Vietnam. Colour: white