51530 Series ASTM F2413-05 EH Deep Heel Overshoes features pole-climbing reinforcement patch. This Storm Rubber Overshoe is with two buckles. Features & Benefits: ASTM F2413-05 EH Deep Heel Overshoes provide extra safety when climbing ladders and poles where the deep heel cavity can lock onto the rungs. These boots and overshoes are made from an ozone resistant yellow rubber that’s 100% waterproof.