headgear maintenance?

I just got a pair of wrestling earguards. I imagine after a few classes they will get pretty funky. How should I clean them? Are they machine washable?

I wash my plastic & nylon strap type Mattman headgear regularly. Also, I know my Brute soft ones are washable too. They should be machine washable if they are plastic and foam. They do get funky, and the washing and drying gets the smell out. If you have the ones that are all hard plastic, you could just wipe them down...

i'd soak mine in the same bucket of bleach water that we'd use to mop the mats.