Over calf version with the most robust, super-heavy and reinforced T3 for maximum protection on trips with hard shell footwear in low temperatures.
Sock Height 
Over Calf
 
Sock Content 
52% PrimaLoft®, 27% Nylon, 11% Merino Wool, 10% Stretch Nylon with Lycra®
 
Reinforecement
Whole Sock
 
Cushion 
Heavy Full