Designed to accommodate the iPod nano and Nike + iPod Sport Kit receiver and sensor, Sportsuit Relay's winning combo includes Marware's patented wrist/armband case and the popular Sportsuit Sensor+ pouch. Made with Marware's signature Orca Skin neoprene material, Sportsuit Relay's wristband case is designed to fully cover and protect the iPod nano with Nike + iPod Sport Kit receiver mounted. The Nike + iPod Sport Kit is an iPod accessory designed to allow runners and walkers to track their exercise programs. Nike + iPod keeps pace, tracks distance, features audio feedback for the athlete through the iPod, all while playing the athlete's favorite iTunes playlist. The benefit of Sportsuit Relay kit is that the Sensor+ component allows athletes to use their favorite shoes to house the transmitter rather than the specialized Nike + shoes, and to the Relay case offers versatile and stylish protection for the iPod nano and the Nike + receiver.