Mostly wear light weight Wolverine pigskins with 400(?) grams of Thinsulate and Gore Tex liners. They're really only water proof if you keep them treated with water proof suede spray, but they're comfy to walk in.

Have a pair of Rockys that have 900 grams of Thinsulate and Gore Tex liners, but only wear them when temps drop into the teens. No problems with cold feet, thus far. Got 'em for half price some years ago at Dick's, right after deer season was over.

Just about all the "name" boots are now made in China, from what I can tell?

Borrowed a buddy's extra pair of Sorel pacs back in the late 70s, that were pretty warm, but can't wear pacs due to lack of ankle support for my feets.

Only truly water proof leather boots I've ever owned, were the old green Brownings, but they weren't even close to keeping feet warm in really cold weather. Lasted about an hour and a half in them things, the year it was minus 20 on opening day of doe.

The soles fell of of the Brownings after about 12 years.