Handmade superior natural rubber field boot 4mm high density durable neoprene lining for extra warmth and comfort Removable cushioned EVA insole with memory foam inserts for excellent shock absorption High performance compound Vibram Outsoles for class leading grip, abrasion resistance, comfort and durability Hoggs of Fife Field Sport Neoprene wellington is a great quality hard wearing insulated boot with a warm 4mm neoprene lining, High performance Vibram outsole for grip, abrasion resistance and durability.