Try www.craryshoes.com. His father started Danner boots. Expensive but I suspect he knows how to build boots. I have a pair by www.esatto.biz and they so far are waterproof with a light beeswax treatment. One piece mountainering boots with as few seams as possible reduce the needle holes. For true wet you need rubber or plastic and then have to live with the sweat factor. Gortex liners eventually abrade at the creases and die. If you really like to spend money and can wait Peter Limmer and sons build great boots.