The Mesabi steel toe waterproof logger boot is built to withstand everything this world can throw at you. The full grain waterproof leather is reinforced with the UltraDry(TM) waterproof membrane to keep you dry in wet conditions and 600g of insulation keep you warm. The sole is a Goodyear Welt which adds strength and durability to the boot and it also includes a comfortable steel shank which provides more stable footing and helps support your feet and calves. The comfortable logger sole is a long lasting, heat resistant material that keeps you safe and secure in any environment. You have a tough job to do, but these logger boots are even tougher.