Ultimate merino wool performance with expanded heat under and over the toes. Left/Right over the calf design fits all type of boots, delivering hours of comfort and warmth. Premium performance and heat when you need it most.
Features:
- 60% Merino Wool, 31% Nylon, 8% Polyester, 1% Spandex
- Sweatsheer Moisture Wicking
- Odorsheer Anti-odor control
- Fits well in Snow boots
- Over the calf length
- L/R Design Compression in key areas
- Arch Support Heel and toe reinforcement
- No slip features Heat under and over the toes
- Comfort Contour
- Bluetooth Battery
- Up to 11 hours of heat
- USB Charging Input
