Never wash gloves with jerseys and such. Here is my method. Get a plastic coffee can, empty and cleaned out of course. Put gloves, warm water and small amount of mild detergent. I like All Free and Clear, no perfume. Put on the cap and you are ready to use your mini washing machine.

Roll the thing around for several min. in a bath tub or laundry tub. Do it in a tub or something as it will leak at the top a bit. Drain, refill with warm water, repeat. Rinse and then air dry the gloves. Works great and the gunk that seems to come out of gloves does not get in anything else. Helmet pads can go in the regular wash in a lingerie mesh bag.

Helmet straps are a real challenge however.