These are the Acavallo Friction Free Deocell Knee Socks.
Acavallo® socks are made from high-tech yarns for a perfect fit and durability.
The Decocell knee socks from Acavallo® are friction free and keep you warm and dry, reducing skin irritations and eliminating painful blisters.
These great socks come in one color, black, and in three sizes S,M and L.
All information about shipping is here.