Nike Air Revive Reloadable Sole: Switch up your style without compromising durability, performance and stability with the Nike Women's Air Revive Reloadable Sole tennis shoes. The shoes come with two interchangable soles, so don't be afraid to change things up a bit. Upper: Lightweight yet durable mesh package for comfort and breathability ~ Synthetic leather frame and external heel clip provide support and stability Midsole: Lightweight yet durable Phylite foam with Zoom Air unit in the heel Outsole: Removable translucent TPU shell with DRC2 rubber compound in high wear areas for durable versatility Profile: A versatile system, with a replaceable outer shell in high wear areas, for the ultimate in replaceable durability Need help? Find answers in the Tennis Buyer's Guide Golfsmith is the world's largest retailer of golf equipment.