More than eight hours of steady warmth powered by rechargeable batteries means no cables or disposable power are needed for extended outdoor use. The socks heat up in about 30 seconds to start comforting warmth quickly.
Three adjustable heat levels let you dial in temperature up to 120°F, providing precise warmth control for varying cold conditions without overheating.
Designed to fit a wide range of foot sizes, these socks fuse windproof and thermal layers with durable materials tested for use in extreme cold, delivering reliable protection and functionality.
Size Guide
| EU | UK | US | CM |
|---|---|---|---|
| 35–47 | 3.5–11 | 5–12 | 22–31 |