Upper: Brown WATERPROOF Tumbled Full Grain Leather, construction: Cement. Lining: High abrasion Nylex / X-Stream WATERPROOF, breathable construction. Insole: Removable Polyurethane Footbed, midsole: EVA Cushion. Shank: Engineered Composite,Outsole: Z-Trac ASR rubber with integrated EVA impact pads.Special Features: 100% non-metallic construction, COMPOSITE SAFETY TOE. Tested For and Meets CAN/CSA-Z195 18,000 Volts Electrical Shock Resistance Standard. X-Stream WATERPROOF membrane construction.