Upper: Flyknit, Mesh. Midsole: Metal Free, Puncture Resistant. Outsole: Dual Density, PU (Polyurethane). 5 Eyelets. Penetration Resistance: 1100 Newtons. Toe Protection (Joules): 200. Anti-Static, Breathable, Energy Absorbent Heel, Flexible, Lightweight, Padded Collar, Padded Tongue, Pull Tab, Steel Toe Cap. Flat. Cut: Low. Design: Plain. Toe Style: Round. Fastening: Lace Up.