I use these for work in Wisconsin. Much warmer than my Rocky boots which also have 800 grams of insulation. Truly waterproof, which is great for snow and sloppy working conditions. I like that they are a hiking boot style, do not come up as high as typical hunting boots, which makes getting them on and off easier. Seem to be a quality product, although I have only worn them for a week. I will update if anything negative arises.See full review