You want to pick up weights, not bacteria.
When you're lifting heavy weights (and, BTW, we have 10 reasons to get to it if you still need convincing it's a good idea), gloves become a staple pretty quickly to protect your hands and give you a better grip. Unfortunately, soon after your sesh it's more than likely that they end up in your gym bag—a dark, moist environment that's perfect for bacteria to grow. (Another gross thing you're not cleaning and should? Your phone.)
Bring 'em back into the light and follow these cleaning tips (once per week!) from Erin and Leif Frey, founders of FREY laundry detergent.
How to Clean Weight Lifting Gloves
1. Soak in the sink.
Fill your sink with warm water, add enough soap (dishwashing detergent works great) to make it sudsy, then submerge your gloves. Massage each glove, making sure to squeeze water through each finger, and use your hands to scrub off any grime.
2. Flip 'em inside out.
That'll make it easier to clean the inside. Just rinse and repeat the same routine you followed for the outside. If the gloves still smell post-massage, let them soak in the sudsy water for an hour or so before going in for another scrub. Then rinse them thoroughly to avoid leaving behind any irritating residue.
3. Toss in the machine.
If washing them by hand isn't doing the trick, throw the gloves into the washing machine on a gentle wash setting (make sure any Velcro straps are securely fastened to prevent them from catching on clothes). Let them air-dry so they keep their shape, and stick to drying indoors—putting them in direct sun can weaken the fibers, allowing them to lose their shape faster.