The Alaska TechniFlex work boots by CAT are a number one selling style for many reasons. From their rugged looks to their durability, these boots will keep you comfortable all day. Tumbled full-grain leather uppers offer maximum comfort while the breathable nylon mesh lining keeps your feet cool. These boots feature CAT's TechniFlex outsole system that is engineered to withstand the stress of flexing while providing maximum comfort. The durable rubber outsole is slip resistant to help you avoid falls in slippery situations.