Hi ferret,
Glad to have you here! :)
I guess if you're after the authentic bands you need to get it from the source -Link hidden: Login to view
and check if they allow these to be distributed through authorized resellers, so you can cut short the chain and apply to be a distributor.
In my search for possible suppliers I encountered a lot of silicone wristbands named Power bands, mostly from China manufacturers. The genuine ones are created by Power Balance based in Orange County, California.
Hope this helps. :)
We're on a campaign to change cookie cutters into profile pictures so kindly upload a photo when you have the time. :)
Take care!