The Blundstone Work Series Chelsea Boots, No. 491, are a non-steel toe safety boot designed to make a hard day on the job a little bit easier. The 491 features XRD in the heel strike zone and under the ball of the foot for increased comfort and impact protection. The black oil tanned leather is naturally water resistant, and the Thermoplastic polyurethane (TPU) outsole provides stability and slip-resistance against organic fat, oil, and acid while also protecting against electrical hazards and heat up to 280 degrees F. Available in both men and women sizes.