iPod/MP3 Moisture-wicking Sports Sleeve (2-Pack) Fits an iPod Nano, up to an iPhone 4G, and everything in-between. Ditch the uncomfortable, unforgiving, and uninspiring case-and-strap systems that have been holding back your workouts. The ActiveSLEEVE™ is athletically inspired and designed to be an extension of the athlete. Extremely lightweight and breathable, the sleeve design allows freedom of movement and unobstructed use in a limitless variety of athletic activities. Moisture-wicking, Breathable Comfort -- High-end, breathable material stretches to fit any arm size/shape with extreme comfort. Moisture-wicking technology keeps your device safe from perspiration while you exercise Cushioned Pillow Pocket -- Perforated foam-mesh lines the inside of the device pocket to keep your screen safe and provide added protection Freedom -- Ergonomic & Simplistic. Slip-on sleeve design stretches over arm and allows for free range of motion while staying where you want it to without hassle. A simple Velcro closure with textured grip tab allows quick access to device, as well as blind access when sleeve is worn under clothing. Universal Device Compatibility -- Sleeve pocket can adapt to most mobile phones and portable music player. Vertical Velcro strip allows closure flap to cinch down and securely hold device in place, even during the most active training. Unlimited Possibilities -- From running to cycling , the gym to the driving range, fresh powder atop the mountains in Nagano to the sun-kissed sand on the beaches of Hermosa, and everywhere in-between. The ActiveSLEEVE™ is limitless in its uses, and more importantly, it doesn"t limit YOU, the Athlete.