Men's Dakota CTCP Oil Transitional Winter Safety Boots, Size 12 with sub zero liners. I think these were rated for -35 C. Fiberglass toe and shank. Not steel. Steel sucks the heat out of your feet in sub minus temperatures. The right boot had a small crack that I glues but it was not leaking. I paid $350 for these some years back. I don't foresee myself heading back north. So if you are considering going to work up north or in the prairies? Then these are what you want.