No more freezing with the patented Toe Cap® technology. The flat, sewn-in heating element is not bulky and provides all-round warmth for the toes - up to 14 hours.

The fit in the calf area is ideal thanks to the increased elasticity. The socks are therefore also perfectly suitable for stronger calves and thanks to the comfort cuff nothing slips. The knee-high heat sock 5.1 toe cap® has an integrated shinbone protector as well as protectors in the toe and heel area. Thanks to the ring bandage, the socks do not slip on the foot.

The well thought-out material mix of merino wool, silk and functional fibers dries quickly and efficiently wicks away moisture.

The rechargeable lithium pack can be attached to the sock waistband with snaps. The heat socks are compatible with all lithium packs of the Lenz Body Heat System.

The temperature can be conveniently controlled on the smartphone with the free Lenz heat app or directly on the lithium pack.