They are of Turkish manufacture, anatomical, warm, and "cool" (black color). The material of the sole is like rubber, some kind of synthetic (?). The downside is that because they are warm, the foot sweats and the sock takes on the characteristic smell of rubber. Compared to a previous pair I had in the same style with a wool cover and cork sole, they are much warmer. Despite the issue with sweat, I will keep them: they are lightweight and comfortable like a sports shoe.