Heel Height: Approx. 8'' Tall. These durable work boots feature a waterproof upper, Thinsulate™ Ultra 400 lining, a moisture wicking lining, and an EVA sculptured removable orthotic insert with moisture wicking cover. It also has a PVC notched welt, tempered steel shank, Goodyear welt construction, and stitched forepart rubber outsole, with high abrasion, oil, heat and slip resistance. Electrical hazard meets ASTM standards.