- Socks for extreme cold.
- Same thickness as competing thermal socks, but lighter, warmer and better moisture-wicking performance.
- Thermolite hollow-core fibers deliver new generation of warmth-comfort fusion.
- Stay-up comfort top keeps socks up.
- Elastic ankle and arch support.
- Fully cushioned shin segment.
- 40% Polyester Thermocool†, 25% Nylon, 17% Wool, 16% Polypropylene.