My 20+ year old Servus (kind of a Lacrosse Burly lookalike that I really did like) blew out last fall the day before an elk hunt. I bought a pair of Muck Wetlanders at Tractor Supply. I wish I’d bought them 10 years earlier. 5 degrees and 6” of snow on the ground, with medium wool socks I was toasty just sitting on a meadow. Walking and warner temps they did heat up. They make lighter versions though. I walked many miles in them, super comfortable.