How often should you wash ski pants?

If they aren't dirty, you only need to wash ski pants every 5-6 weeks. But if they're dirty after a long day of skiing, you should wash them to prevent mold from developing and causing a funky odor. Set your washing machine to the delicate cycle with cold water and use a detergent designed for waterproof clothing. Wash your pants in the machine and then hang them up to air-dry if you can. If you're short on time and need to use a dryer, make sure the machine is on its lowest settings. Tumble drying is hard on the fibers so use the lowest setting and the shortest time possible, and don't use fabric softener, which can clog the pores of the fiber that allow water vapor from under your clothes to escape.