i360 30399BC Headphone Polarband for 1G, 2G, 4G, 5G, 6G iPod Nano (Black, Orange) Designed for 1st, 2nd, 4th, 5th, and 6th generation Apple iPod Nano and compatible with Nike + iPod system. Internal wiring system + detachable speakers included. Custom thin speaker casing provides increased sound quality and bass response eliminating the dorky ear muff look. New Feature: 2.Omm Neoprene iPod Pocket protects your iPod form moisture and provides padding for your head. New Fabric: Comfortable Spandex/Cotton lining is warm enough for the fall and cool enough in the summer Sportband contains  93% Cotton / 7% Spandex