Your gear must be clean before you send it in to us. You should also regularly wash your gear to keep it performing and looking fresh. WASHING: We recommend washing in cold water (if your gear is really dirty, wash it in warm water) on gentle cycle with a detergent that is specifically made for outerwear. Close all zippers and loosen any draw-cords. Never use normal liquid detergent or hot water, as both can destroy the membrane and the glue that holds the seam tape. We recommend Grangers, which has a wide range of products for all types of technical gear.DRYING: Either hang to dry or, to reinvigorate the product's DWR, place it in the dryer on low for about 10 minutes and then hang dry. Never dry on high or for very long as you will destroy the seam glue and your garment.