The sewn-in heating element in the heat sock 4.1 toe cap® provides warmth and keeps the feet warm. The toes are warmed both from above and below. The fit in the calf area is ideal thanks to the increased elasticity. The socks are thus also perfectly suitable for stronger calves and thanks to the comfort cuff nothing slips.

The socks are knitted left/right and promise a perfect fit thanks to the ring bandage. Padded reinforcements protect the toes and heel. Natural merino wool combined with technical fibers absorbs moisture and keeps warm.

The comfort cuff with snaps fixes the lithium pack. This can be purchased as an option to the heat socks. It is operated either by pressing a button on the lithium pack or with the free smartphone app.