After 25 ice season's I had to retire my wolverine's with insulated inserts all because there was an old piece of fence under the snow and I put a small hole about an inch and a half above the sole, not good when the ice got slushy and there was standing water on the ice.
So after going thru review after review on different brands of boots I settled on a pair of knee high Thorogood 800's, got them at farm & fleet on sale, but even on sale they wasn't cheap ( over $200.00 ) and I was wondering when I bought them if they were going to able to keep my feet warm for over 6 to 8 hours of ice fishing a day otherwise I would of been returning them before the store warranty.
First day on the ice which was only 10° out and with a wind chill it went down to 2° so I tried 2 thick pairs of socks which ended up being overkill, my feet were more than warm all day and once I got home the first pair of socks were drenched in sweat, so the next time I went out on the ice I only put on one very thin socks with the wool pair of socks over them and I was fine the whole day, the temp's was about the same as the first time I went out with them.
The boots have been great so far, now all I have to wait and see how many ice seasons I'm going to get out of them.
I'll add a few photos.