Clean it often. I know alot of guys are not gonna like this, but I always fill up my ratio rite cup with gasoline, I then dip in the outerwear and swish it around for 10 seconds. When it comes outta the gas, its clean. shake off the excess gas and take it over to your garden hose. Spray it off with water. Now all you have to do is let it dry, it will hold water in the pores. Sometimes if im in a hurry, I'll use a hair blowdryer. Hold the blowdryer up to the Outerwear and it blows\evaportes the water almost instantly. Be carefull tho, you can burn\melt the Outerwear with the hairdryer.