LOOKING AFTER a waterproof jacket can be trickier than maintaining a normal item of clothing: it requires a certain amount of upkeep if it is to continue to keep you dry and perform well for a long time.
Dirty jackets don’t let body moisture through very well, so you get damp from condensation building up inside the jacket as you sweat quicker. The durable water repellency (DWR) treatment on the outside of
