Wore my drake 3 in 1 jacket for years, it is more so water resistant, not water proof. Was completely happy with my purchase though cause I bought the 3 in 1 jacket and a pair of drake wader pants for $90 total. Wore them for 3 years till it got to the point where I would get wet just from boat spray or a light rain, sold both for $60 and made the switch over to Sitka gear. Cant beat gore tex fabric and how it actually is 100% waterproof.
Interesting....I've worn Drake jackets for several years and have never gotten wet like you describe. I'm talking riding in boat with heavy spray, to riding ATV, to sitting out in the rain like this morning. I don't doubt Sitka has a better waterproof system but I can't see parting with the premiums they want when my drake gear has worked great.
Heck, I remember the days when all we had were Walls coveralls and mud boots. Our options today are light years ahead.