Quad Comfort™ technology = four cushioning layers for daylong comfort. The Hyper-dri® barrier provides 100% waterproof protection, and there's a nylon knit lining for durability. These full-grain, oiled leather upper LaCrosse Wellingtons have side pull tabs, a steel shank for arch support, and long-wearing Quad Comfort™ TPU non-slip, oil-resistant outsole. Dual-density, polyurethane midsole and a soft, removable, dual-density footbed, plus Quad-Core™ with EVA filled cutout zones in the heel and forefoot. Electrical Hazard rated.