Free: Contests & Raffles.
Sitka stormfront pants and jacket will keep you dry.....period. I’ve wore it for years for hunting and non hunting. It is 100% waterproof. I carry it in my pack no matter how short the trip, no matter what the weathers doing when I leave. It is part of my “survival kit” and its never let me down. You can get older versions at a pretty good discount.
I've heard of people and gear that have stayed dry in the rain while active. I have also heard of bigfoot and the tooth fairy.My imperfect answer is to stay at least safely warm and then dry out to some degree, change clothes or suffer the next day.If you are humping up a hill in the rain, I just don't see any way to stay dry for any amount of money.