Viability of Belt Driven Mecanums

[Mampt]

We are considering a mecanum drive train this year, but for the sake of weight and simplicity, we want to drive it with belts. We ran into a few issues with this, the most prominent being whether or not 9mm or 15mm could stand up to the torque from the drive when strafing without stretching or tearing. I looked them up on Andymark to see what information thay had there, but I couldn't find anything. Any help would be great on this.