These wool socks are really special. They are handmade and keep warm in cold winter days, but they don't like stinky feet. And they are really old and had a hard life. My father already wore them when he was young and he wanted to throw them away because in one sock was a hole. But I saved them and my grandmother rebuild the socks and gave them a new life and they might be old, but they do a great job and have made and have made a lot of experience. They know how their job works, and there are a lot of different situations like snow parties, hard work and also the bed. But the socks are more than sustainable because my grandmother bought the wool, made them and repaired them, and they are more than 30 years old and they are really wise and know how things work.