PRODUCT FEATURES:Slimline, contoured sport armband compatible with a variety of flash MP3 players including the Sansa Express, iPod shuffle, Sony MP3 Walkman, iPod nano 3rd Gen etc.Thin, neoprene material offers easy access to controls while MP3 player is in the caseBreathable sport material keeps you dryOne hand easy adjust armband eliminates fumbling while putting on and adjustingInnovative airflow channels on back of armband allow air to move between arm and case, reducing the wet, sticky connection between skin and armbandCord management loop prevents long earbuds from flopping around while on the goConvenient hidden storage pocket stores health club ID, credit card, money and/or keys while working outDiscreet reflective strips keep you seen at night