Protect your work and bring air bubbles out of applications with this pair of flexible spiked shoes. The gray flexible plastic lets you work in ease and comfort. The flexibility of the base of the shoe creates a more natural movement when walking. Thirteen 3/4" steel spikes are precisely positioned around the plastic base of the sandal for balance when walking on epoxy, sealers, gunite, and shotcrete materials. The back of each shoe has a stop to prevent work boots from moving around the shoe. Each shoe is equipped with two adjustable nylon straps that fit around the work boot. Plastic clasps secure straps to minimize loosening that occurs with Velcro closures. The overall length of shoe is 12". Use with work boots for safety. One size fits most. For best results tighten spikes before use.