Timberland PRO Men's 6" Resistor Composite-Toe Waterproof Work Boot 100% Leather and Textile Imported Synthetic sole Shaft measures approximately 6" from arch Lace-up work boot featuring seam-sealed waterproof leather upper with composite safety toe Padded top collar Lightweight polyurethane midsole for flexibility and cushioning Tri-density outsole and midsole for underfoot comfort and durability Timberland PRO outsole features an abrasion-, slip- and oil-resistant sole, tested for volume swell using EN345 TMP ASTM fuel A 7 Diesel ISO 1817 liquid F for 22 hours and ASTM IRM903 & Fuel B for 46 hours