Martens is the right choice. These mid-calf boots are manufactured from Polished Smooth leather upper with reinforced heel and durable YKK zipper on the inside for easy access and classic lace-up closure on the front for a personalised fit. The leather and textile lining ensures your feet stay cool and dry, well ventilated and abrasion-free throughout the day. The non-removable, padded insole provides cushioning with every step to ensure great comfort. These zip-up boots are constructed on the iconic AirWair air-cushioned sole that Dr.