waterproof iphone 4/4S armband case, sport case ,arm belt case ... logowelcome yr OEM designusage:Promotion, Business Gift, Daily Use for mobile, key, Office and School Supplies. MOQ:100pcsPayment term ... -skidding,anti-collision,washable.2.Special designed,compatible to iPhone 3G/3GS/4S.3.Flexible magic paste is convenient ... .5.OEM,ODM are welcomed. running armband case for IPHONE 4G/4S,with custom logo