Harkila guarantee only covers material failure, not lack of waterproofing. I have both jacket and trousers (over a year now) and can honestly say that the trousers are a little drier than jeans, but only on sunny days. The jacket is comfortable and not over warm, but I don't like a jacket to be too warm anyway, it is shower proof, but when the rain comes heavy and horizontal it gets wet at the elbows and under the arms where the vent zips leak, it also gets very wet when used for crawling in wet peat/moss. Definitely not the best gear I've used. I still have two Kammo jackets that are ripped and torn on the outside (had both for over ten yrs) but they refuse to let in water. If you are out in very wet conditions I would say that Nomad stuff is probably as good as is out there. Next time I am out in the wet (more than likely next week) I will wear the Harkila jacket and take pics of where the wet comes in, just to show folks who think they are buying some great gear