I work in the Canadian North (Northwest Territories) where temps easily reach -50 Celsius. I have always had trouble keeping my hands warm. These mitts keep my hands completely warm and cozy. If you are doing any physical activity your hands will probably get too warm. Your dexterity when wearing these mitts is quite limited, but that is a trade off for the insulation and comfort gained. These mitts are listed as men's but I bought the small, based off the size guide, and the fit great!I don't think the leather palm was really made for tough wear and tear, that would be about the only issue. All in all, completely worth it for warm hands!!