Dakota WorkPro Series Men's 8901 Winter Work Boot

2nd winter and the soles detached from the bottom of the boots

I've tried these boots down to -24C so far. Luckily, it hasn't hit -50C yet, but I can tell that these boots will keep me warm even at those temps. I've had other winter boots that were rated to -70C, and they were okay at -40C, but these definitely feel like they will be warmer. But so far at -24C they were great, being outdoors for half the day, with minimal walking. - Will update when the temp drops. Size-wise, go up 2 sizes. I'm usually around a 9us, but got these in an 11us. Make sure you also wear good socks when testing. I wear a very thin toe merino liner sock, with a mid-weight merino sock on top. The two negatives so far... No extra liners are available online. I see there is a woman's version, but no men's. So, you are stuck with only one, which is really annoying. And there is no Dakota store, so you have to buy only from Marks, and their supply is not great. You will probably need to buy a new set of laces too, because the ones that are supplied are short. They barely allow me to tie the boots. It's annoying as well. I ordered a new set on Amazon, the only place I could find some, in this extra-long length, around 100" - give or take.