[rich2202]

I usually run the pointy end of a nail across the fabric and see if it rips - jk.

It can be hard to tell. There are some really light weight durable fabrics out there. Expensive, but that is their choice. I usually let the LRI know.

The issue usually resolves itself rather quickly. If it rips during bumper to bumper contact, it isn't durable enough. At some point, you won't be let back on the field until the bumper is fully repaired (not just patched with fabric tape).