[achenatx]

i wear rashguards for BJJ. The key is to oxidize the molecules that stink.

very light amounts of bleach work great. For example if you let them soak in a swimming pool (typically around 5ppm) for 10 minutes they will be stink free.

You can do the equivalent with 1tsp of bleach in a few gallons of water (really about 20ppm or a little more).

Obviously products like oxyclean can also oxidize the molecules.