4.1 Heat Sock

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Best Price: $129.95 

from:  backcountry.com

The Lenz 4. 1 Heat Sock provides warmth to the foot during outdoor winter activities with a sewn-in Toe Cap heating element above and below the toes. A mixture of Merino wool and technical fibers adds warmth to the rest of the foot and calf while absorbing moisture, as a ring bandage and left/right knitting ensures a perfect fit.

• Brand: Lenz
• Category: Clothing and Outerwear / Socks
• SKU: LENC00C-ONECOL-L