The Shoe Pouch allow runners and walkers to use the Nike+ iPod Sport Kit, or the Nike+ SportBand, with your favorite shoe. You attach the pouch by threading your shoelaces through the provided loops. This allows for a secure fit, which in turn maintains the accuracy of the Nike+ system. With over 100,000 Shoe Pouches sold, we have saved our customers well over $10,000,000 USD in purchases of new Nike+ shoes.