I got the stormtight earlier this year. did the old shower test for 15 minutes and was bone dry. it was awesome the 1st few rainy days as well. but, my joy was short-lived since water started seeping in while out in a downpour. im going to try to reactivate the DWR or wash it in some atsko permanent waterproofer because I love the fit, how light/packable and quiet (for a shell) it is. if it doesn't work im going with the yukon