One Size Fits All: 39-45.
Materials: 88.5% cotton / 10.2%  polyamide / 1.3% elastane.
Thicker cotton on balls of feet than regular socks: Soft and sweat-wicking.
Ribbed cuffs make the design perfect and guarantee a non-slip fit. 
The stretchy material fits snugly around your feet and gives you a comfortable wearing feeling.