🎁 Gift with peace of mind: extended return period until 10.01.2026 | Valid for all purchases until 20.12.2025.
The sewn-in heating element in the heat sock 4.1 toe cap® provides warmth and keeps your feet warm. The toes are warmed from both above and below. 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 socks are knitted left/right and promise a perfect fit thanks to the ring bandage. Padded reinforcements protect toes and heels. Natural merino wool combined with technical fibers absorbs moisture and keeps you warm.
The comfort cuff with press studs fixes the lithium pack. This can be purchased as an option with the heat socks. It is operated either by pressing a button on the lithium pack or with the free smartphone app.
 |
Heat Our heated products are available with permanently installed and flexible heating elements. The heating elements heat the products in different places using a battery, perfect for cold days. More information |
 |
Merino SoftTec® This material combines the natural warmth, breathability and hygiene of merino wool with high-tech fibers. It offers a scratch-free feel and is particularly suitable for outdoor sports activities. More information |
The sewn-in heating element in the heat sock 4.1 toe cap® provides warmth and keeps your feet warm. The toes are warmed from both above and below. 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 socks are knitted left/right and promise a perfect fit thanks to the ring bandage. Padded reinforcements protect toes and heels. Natural merino wool combined with technical fibers absorbs moisture and keeps you warm.
The comfort cuff with press studs fixes the lithium pack. This can be purchased as an option with the heat socks. It is operated either by pressing a button on the lithium pack or with the free smartphone app.
Heated socks, like the Heat Sock 4.1 Toe Cap, heat the area above and below the toes through integrated heating elements and warm the entire foot from there. Unlike insoles, they fit into any shoe, are cordless, and are ideal for outdoor activities, winter sports, or long days in cold temperatures. Thanks to the barely noticeable heating system in the fabric, no additional accessories are needed inside the shoe.
The Heat Sock 4.1 features the patented Toe Cap® technology, which heats the toes evenly from above and below. With its reliable warmth and reinforced material in the heel and toe areas, the sock is suitable for various everyday situations and hobbies.
The battery life of the Lenz Heat Sock 4.1 ranges – depending on the heat setting and battery used – from approximately 3 to 23 hours. A longer runtime is possible at a low heat setting, while maximum heat provides correspondingly shorter operating time. Exact duration also depends on outdoor temperature and individual use.
The heated socks are particularly suitable for ski days, winter hikes, commuting, or working in low temperatures. They are designed for moderate activity and fit many types of shoes – from hiking boots to winter sports footwear. Thanks to the optional app control of the battery via Bluetooth, they are easy to operate on the go.
In combination with a Lenz rcB 1200 battery, run times of up to 14 hours are possible depending on the heat setting. Using larger capacities such as the rcB 2000 can even provide 23 hours of warmth. The sock works exclusively with compatible Lenz batteries.
Before washing, the batteries must be removed from the heated socks. The socks can be washed at 30 °C on a gentle cycle, ideally in the supplied laundry bag. Do not use fabric softener and do not wash by hand, as this can damage the material. The heating elements are firmly integrated and withstand normal care without issues.
It is aimed at anyone looking for a versatile heated sock model – whether for commuting, walking, or winter activities. The targeted toe heating provides comfortable warmth for cold feet. Easy operation and a universal fit make it the ideal all-round heated sock.
The batteries are not included with this product and can be purchased separately.
Size chart
Heating times
Help Center