|This Bates Delta-6 Mens 6 inch Side Zip Boot - Black is Bates E02346 Delta-6 Mens 6 inch Side Zip in Black. These leather and nylon boots allow you to select the level of comfort and performance you want. The midsole features a removable disk that rotates among four zones to control firmness, cushion, inward and outward stability. Set the dial to the FIRM zone for energy return, the CUSHION zone for increased shock absorption, the OUTWARD zone to reduce outward tilt and maximize natural walking motion and stability or the INWARD zone to reduce inward tilt and maximize natural walking motion and stability. The side zipper allows for ease in putting on and taking off and non metallic components make passing through electronic security effortless. A slip resistant rubber outsole and cement construction ensure comfort and traction for long days on the job.