FWIW, there are no leather upland hunting boots that are 100% water proof.
They all will leak at some point.
After decades of upland hunting and a few boots, I have settled on Russell.
Filson tried to purchase Russell but Ralph won't sell.
Old school tech and factory in Berlin Wisconsin.
Have been there many times for fittings.
Customize to what you want and your fit.
When they fit, they are like hunting in slippers.
But you just can't walk into a store and walk out with boots,
Russell's require some time and effort on your part.-Richard