Capezio® Fizzion™™ Z11: Heighten your natural movement in the Capezio® Fizzion. A sock-like shoe that is designed to provide a barefoot feel. Four-way stretch, breathable Polyester Lycra® and sheep skin leather upper. ExoArmor duet sole patches move independently . Pads are securely sewn with stitching both on the edge and interior . 5/8" one-sided plush elastic with Capezio® logo topline. Customize style and fit with interchangeable and adjustable straps and laces . Techniques are incorporated to create a non-static fit that matches the movement of the foot. Sculpted heel cup for enhanced comfort and fit. Cushioned suede sole patch provides comfort and shock absorption . Elastic laces and straps . Sizing: Small (Women Size 6-7, Men Size 4-5), Medium (Women Size 8-9, Men 6-7), Large (Women Size 10-11, Men 8-9).