Stuff some dryer sheets into them between uses. I’ve been in the sport for many years and that seems to work. If you want to spend some money you can get a drying machine for them which may help, probably not since they already stink. But check out Tittle.com or Ringside.com for products.

Turn them inside out and sprinkle baking soda on them then brush them good with a sponge brush(like a painting brush), spray with fabreeze, let them air out.

I used to take kickboxing… I just turned mine inside out the best I could then put them in a “delicates” bag and threw them in the washer… it got them clean and didn’t destroy them… if you aren’t willing to take the chance, I also used to use febreeze.. get the strongest scent that you can find and you can febreeze them and put them to dry … every time you are done using them you can stick some newspaper in them for a few hours to absorb all the sweaty goodness and then after you remove the newspaper febreeze them again