I've got a pair of either the Lacrosse uninsulated Grange or Burleys that I've probably been using in excess of 25 years. (Can't remember which, I think one was 16" and the other 18"). Most comfortable rubber boot I've owned. Last year I had to retrieve a big doe that was stubborn enough to expire in the middle of a shallow river. The boots are starting to look about as old as I am, but my feet didn't get wet until I waded into water over the tops. Even then, the tops were snug enough around my calves that very little water got in. Nuff said, I'll get another pair if these die before I do!