Fitness armband with Mili battery pack

[silkster007]

I have searched high and low for a fitness armband (preferably waterproof) designed to accommodate the iPhone 4s with a battery pack (Mili 3000mAh)
Does anyone know where I can buy this elusive item?

 

[smedmonds]

Try Arkon.com they have a couple sizes. I thinking of getting one