The good: Really keeps my feet warm working outside in 15-20 degree weather. They also fit very well.The bad: They are not the same height. Way off. One goes all the way up the calf and the other only half way up. I added a picture showing the huge difference in height. I haven't washed these yet so it's not because of any way/dry cycle. This is how they came right out of the package.I only subtracted 1 star though it deserves a 3 star review. Only reason why I kept at 4 stars is because i wear pants over the socks and nobody is going to see the difference. If you want to wear these over your leggings so it shows them you won't like these.My feet get really cold at night. These have helped a lot.Only downside is the sizing. I ordered the 13-15 men's--my feet are 13 XWide, and they just fit. They stretch, but I doubt anyone with 14-15 size feet would find them comfortable.I bought them as gifts for our sons for Christmas. They all love them, and now I am ordering some for our grandsons too! On a cold weather Scout campout, our grandson boasted that he was the only one with warm feet! Not bad for camping in January! So far, they all love them.They're like a hug for your feet. Very thick but they seem to stay dry and not cause your feet to sweat or smell. You can even wear them in warmer weather.These are so good so far. I use them for cold weather. They keep my foot warm and best of all, they leave no lint residue! They are not tight around the top of the socks. I can wear them all day! Excellent socks!VERY comfortable! They do an excellent job keeping my feet warm too. Just can't throw them in the dryer after washingEvery. Single. Year I buy my husband the thickest socks I can find. We are in the cold Midwest, and he has barely any circulation in his feet. Now, each year I purchase a new brand to try them out.I purchased these in the 3 pack, charcoal/grey/black. At first I thought they seemed a little thinner than others, but my husband says they are just as warm. The outside is attractive, and the inside is SO SOFT AND FLUFFY.I've only left 4 stars because I'm waiting to see how durable they are. Honestly that is always the biggest issue.These run true to size and appear to be good quality. Will update in a month or so!Much warmer than regular socks but not the warmest. For the money a good deal. If you want really warm you will have to pay big bucks.Super chaud et confortable, je ne m’en passe plusThey are warm and comfortable but don't stay snug on your lower legs when wearing winter boots,but ok in runners.They were bought as a gift for my dad. He loves them. Comfortable and they keep his feet warm.Warm and comfortable. Great for winter wearWarm yet breathable. No sweaty feet and tons of amazing cushioning. Like walking on a cloud.