Bumper Fabric Selection

[Cynette]

Another bumper question:

I notice that there is no mention of a specific fabric recommendation in this year's game rules, just that it should be a rugged, smooth cloth.

I know that the 1000 D Cordura meets the requirement nicely. Has anyone used other materials with success? Does a broadcloth hold up? Denim? Another nylon selection?

[JohnBoucher]

In a lot of fabric stores it's called "Duck Cloth" and it's usually hidden in the back of the store.

[DonRotolo]

We've used lighter cordura without problems. We have also used heavy cloth from the fabric store - not sure exactly what it was, but I'd call it canvas, as it was much heavier than denim.