Product Description Combine smart style with ultimate comfort in these lace-up leather Derby shoes. Smartstep technology has been used to insert the cushioning into the sole for a thinner and more contemporary look. Soles are made from our hardwearing and long-lasting Durasole 90 material, with our Airflex™ system for enhanced support and flexibility. Freshfeet™ technology combats bacteria to minimise odours. Made with sustainably sourced leather. M&S Collection: versatile styles in modern shapes with unique and playful details.