Keep out the cold with these extra-heavyweight FoxSox. They'll keep you warmer than a sheep. Plus, wool can absorb as much as 30% of its own weight before feeling damp. Say no to soggy feet. Fully thermalined construction insulates to block out cold and cushions. Wool naturally wicks away moisture to keep feet dry. Stretch ribbing at cuff and leg prevents muscle fatigue and pinching. Smooth, flat comfort toe seam. 84% worsted wool, 9% acrylic, 6% nylon, 1% spandex.