Not sure anything will help 6 days of torrential downpours bearable
I finally gave in and bought some true rain gear after getting drenched in an early season bow hunt this year. I bought Cabelas Rain Suede and have been very happy with it
First use was standing in 6 hours of steady rain during the Georgia Alabama football game pre game and game back in early October. I was basically dry at the end much to my pleasure and surprise
I then used it again a couple of weeks ago. Left the house in a torrential downpour because the radars said the storm was passing at about sunrise and I wanted to be in the stand. Rode an ATV a couple miles thru the downpour, including thru some roads overgrown with 5 foot soaking wet pines. It rained off and on all morning. Not only did I stay dry, I also had deer within 50 yards of me all morning and the fabric was plenty quiet
So far my only regret is not buying it sooner. I think I paid about $250 for the pants and the parka. They run big too. large fit me fine whereas I am nornally an XL in everything else
I've used Cabela's Rain Suede sine 2004. Not sure if it's the best, but it works well.