Scrub brush, try dry at first and it will knock a lot of the dust out. If it got muddy or rained on, then proceed to using a mild soapy solution (no dish or degreasing soap) on the brush, brush the glove and blot it with a microfiber towel (helps get as much water out as possible). Let it dry for a week, no ovens, cars, or direct AZ sun to speed the process.