In purchasing these trainers, you are supporting more responsible leather production through the Leather Working Group. Leather upper. Recycled blend comfortable foam insock. Warm, recycled polyester and wool lining. TPR and rubber outsole. Heel height: 3.5cm/1.4in. Shaft height: 14cm/5.5in. Hybrid hiking/combat boot styling. Calvin Klein subtle logo at the heel and tongue. Runs true to size. Country of origin: Portugal. Colour: brown