The sandal upper is crafted from 100% recycled nylon, excluding trims. The recycled nylon in this product was created by reprocessing existing materials. Recycled nylon webbing upper. Comfortable foam insock. Faux leather lining. Rubber outsole. Heel height: 10.8cm/4.3in. Adjustable ankle strap. Logo jacquard webbing strap. Calvin Klein logo on the midsole. Runs true to size. Country of origin: China. Colour: black