The Reebok Simplytone fitness shoe uses balance pods built into the shoe to create a natural instability, much like walking on a sandy beach. Crafted with a leather upper and textile lining, this shoe features Women's Specific Last technology for optimal fit and function and a seamless liner to minimize rub and irritation. Reebok Product name: Reebok Shoes Fitness. Synthetic Mesh. Rubber sole. SimplyTone technology for micro-instability and softness assist in toning. Multiple openings in the upper allow water to drain freely. A soft Shoc Pad in the heel gives you serious shock absorption. Multiple points of size adjustment for the perfect fit. Non-marking Spider Rubber outsole.