The boot is delivered with removable extra insole, which whenremoved, makes the boot two half sizes larger• Strong and durable YKK® zipper in the back• Elastic along the back of the shaft for a better individual fit• Ergonomically designed removable EVA insole• Slim outsole made for riding with dirt repellent tread zones* Available in double sizes 36/37 37/38 38/39 39/40