The Sportsuit Relay is designed to accommodate the iPod nano and Nike + iPod Sport Kit receiver and sensor. This case was specially designed to make Nikes innovative, i-Pod-based fitness technology available to all running shoes. The Relay includes a protective Nike sensor pouch and convenient wristband carrying case. An armband expansion piece allows you to also wear your iPod on your arm two cases in one! The case completely but safely encloses your iPod to provide you the comfort and protection necessary for an active lifestyle. And, of course, you have the assurance of Marwares lifetime guarantee! FEATURES: •Accommodates the iPod nano and Nike + iPod Sport Kit •Wrist/armband case gives two-in-one case, flexible wearing options; includes a protective sensor pouch that works with all running shoes •Protective, durable neoprene and rubber construction supports active lifestyle