Dr. Zen Big Ben Men's Therapeutic Diabetic Extra Depth Work Boot Leather Lace Leather Dr Zen therapeutic / diabetic footwear features the most advanced functional orthopedic shoe technology built right into the shoe. The shoes feature the highest quality materials, light weight, 3/8" extra depth, seamless construction, achilles tendon support, rocker sole, Thomas heel, rigid shank, and reinforced counter. Triple Width System (TWS) shoe has 2 removable spacer insoles, every time you remove an insole the shoe becomes 1 width wider. The platforms are designed specifically for the widest width. Every added insert takes up one width. This gives the fitter, patient, etc the option to customize the fit of the shoe to accommodate swelling, pronation, certain deformities, and foot braces (AFO's). Supports Conditions: Moderate Bunions, Hammer Toes, and Deformities. Shoe Cover: Leather uppers and seamless linings. Sizes: 7-14 - Widths: B-D, E-3E, 4E -6E, 7E-9E