Professional Choice Ballistic Overeach Boots - Pair in Purple Made with Dupont's original Ballistic nylon - a material used in the manufacturing of bulletproof vests. The durable Ballistic nylon exterior bottom edge binding, make these boots double tough and able to take the daily abuse of riding. A soft no-turn-knob that fits right between the bulbs keeps the boots from spinning and the double front hook and loop fastener keeps them securely in place. Boot fits comfortably.