Carolina 4 X 4 Nylon mesh lining is both breathable and lightweight A removable DRYZ/EVA (Ethylene Vinyl Acetate) footbed keeps your feet comfy and dry by providing form-fitting flexible cushioning and using patented technology to absorb excess perspiration Steel toe protection provides additional safety and injury prevention, on or off the jobsite Mid-rise design for added ankle support Durable leather upper and thick rubber outsole provide extra support and longevity