Unfortunately, I cannot evaluate this product positively despite it being Greek and branded. Obviously, it requires special care in washing and not as a regular sock. After 3 years of use, when I wear it, it sheds lint - dirty fluffs that have dirtied the house, and also in some areas they are now transparent (obviously, they have lost part of their thermal properties). I do not recommend them to anyone unless they intend to buy these socks every year or every 2 years.