Epoxy probably won't work; it will not be flexible like the rubber, even if it bonds. There are several things that might work.

Ideally, you would need to know what kind of material the waders are made of, to determine what the best repair strategy is.

1) Heat. If the rubber is thermoplastic is will melt, so rubbing it with a hot piece of metal might allow you to close the hole.

2) Try bonding on a piece of bicycle inner tube with the special glue (really just a solvent gel) that is used for fixing flat tyres. If the material of the waders is also dissolved by the glue, it might work.

Both methods should be tested on the top of the wader before thying the actual repair.

Found these products, would love to know if they work because it is a constant problem here.

http://www.rubberbootbandage.com

http://www.stormsure.com/tape-patches.html

Get on the companys' web site. They may have a repair site with repair instructions.

Good luck.

This looks quick-n-dirty:

http://www.rubberbootbandage.com/products.html

My husband loves adhesives of all kinds. he'd recommend something called Seam Grip, which comes in a tube in the camping section. It's a bit like rubber cement - stays flexible even in freezing temps, not that you'd want to be wading around in freezing water, but...I never know with you guys, ha ha! I'd totally write to the manufacturers, though. Or at least mention it to the store at which you bought these.

You might try a can of Flex Seal, its worked pretty good on my 5 gallon buckets that had some holes drilled in it. I thought i would see if the flex seal would really work, like on the commercials. Yep, it did.

Maybe you need to find salt water fishermen's boots?

Wish you had a better creek crossing!

This is the most important problem to solve! Good luck!

Don't use epoxy, it will just leak again soon. Are you old enough to remember tire patch kits? If you can't find one, contact cement will work better than epoxy ever will.