This AeroSport delivers all-day comfort in a lightweight, one-piece construction to make AeroSport the ultimate active-use armband for athletes of every stripe. We start with a Lycra core for flexibility, light weight and amazing comfort. The band is cut wide to stay put comfortably without having to overtighten. Just fit AeroSport to your arm, then slide your iPod touch into place. You have complete access to your Multi-Touch display and headphone jack, and your iPod stays protected from fingerprints, dust, and scratches. We've even designed in a hidden pocket to hold your locker key.