Heated Socks – Rechargeable Heated Socks
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Heated Socks for Skiing, Everyday Use, and Hunting
Heated socks, also known as warm socks, heated-in-socks, or socks with heating, keep your feet warm with a small rechargeable battery in the cuff: on the ski slopes, while winter hiking, in the barn, or while hunting. At Bergfritz, you’ll find all the latest models in stock in Switzerland, at low prices and with personalized advice. Our 2026/27 Heated Socks Test shows which models perform best in real-world use.
Lenz Heated Socks – Our Best Sellers
The best-selling heated socks at Bergfritz are the Lenz heated socks. This long-established company from Schwarzach in Vorarlberg has been developing heated clothing since 1987 and is considered a leader in innovation. The heating elements are located over the toes (toe cap), the batteries are attached to the cuff with a snap button, and with a Bluetooth battery, you can control the heat via the Lenz Heat app.
- Lenz Heat Sock 4.1: The Versatile Entry-Level Option for Leisure, Hunting, Horseback Riding, and Winter Walks
- Lenz Heat Sock 5.1: the all-around ski sock—our top pick for most skiers
- Lenz Heat Sock 5.1 Slim: same as the 5.1, designed for narrow feet and lower legs
- Lenz Heat Sock 6.1 Merino Compression: thin, made with merino wool and compression for tight ski boots
- Lenz Heat Sock 7.1: Lenz's thinnest heated socks, designed for very tight performance and race ski boots
Heated Ski Socks: Which Heated Socks Fit in Your Ski Boots?
Every millimeter counts in a ski boot. For a typical day of skiing with a standard-fit ski boot, we recommend the Lenz 5.1. If your ski boot is tight or has been customized, choose the thinner Lenz 6.1 Merino or the Lenz 7.1. For narrow feet, the 5.1 Slim is a better fit. This ensures your heated ski socks fit without wrinkles or pressure points, and the battery stays at the top of the sock, above the boot shaft.
Heated Socks for Everyday Use, Horseback Riding, and Hunting
If you stand still for a long time, your feet are the first to get cold—whether you’re in a tree stand, in the barn, on the sidelines, or at the Christmas market. Slightly less tight-fitting styles are more comfortable in these situations, such as the Lenz 4.1 or our own Bergfritz heated socks.
Bergfritz Heated Socks – the affordable alternative
With the Bergfritz Heated Socks Set, you get a durable and affordable alternative to Lenz: a heating pad in the forefoot, two heat settings, up to 8 hours of warmth on setting 1, and two rechargeable batteries and a charger included.
Battery and Heating Duration
How long heated socks stay warm depends on the battery and the heat setting:
- Lenz Heat Pack 2.0: approximately 3 to 13 hours, three settings directly on the battery, no app required
- Lenz rcB1400: about 4.5 to 16.5 hours, with Bluetooth and the Lenz Heat app—ideal for most days on the slopes
- Lenz rcB2000: approximately 6.5 to 23 hours, for long trips and multi-day trips
- Bergfritz Heated Socks: up to 8 hours on setting 1, 4.5 hours on setting 2
You can find compatible replacement batteries and chargers in our battery shop.
Frequently Asked Questions About Heated Socks
Can I wash heated socks?
Yes. Wash them without the battery in a laundry bag at 30 degrees on the gentle cycle, then let them air dry. Hand washing is not recommended because it can damage the heating elements. You can find detailed instructions in the guide on washing heated socks.
What size should I choose?
The size you usually wear. If it doesn't fit, exchanging it with us is easy.
Which heated socks are best for skiing?
For most skiers, the Lenz 5.1; for tight ski boots, the Lenz 6.1 Merino or the 7.1. We explain all the differences in our heated sock guide.
How do heated socks work?
A thin heating element over the toes or in the forefoot is powered by a small rechargeable battery at the top of the sock. You can adjust the heat setting in several levels; with the Lenz model featuring a Bluetooth-enabled battery, you can also do this conveniently via the app.
Are the batteries included?
As for the sets, yes: You get socks, two batteries, and the charger. The individual socks are intended as replacements or extras if you already have compatible batteries.
What is the difference between Lenz and Bergfritz heated socks?
Lenz heated socks warm your toes from above and below (toe cap); they come in various fits and, with the Bluetooth-enabled rechargeable battery, can also be controlled via an app. Bergfritz heated socks warm the feet via a heating pad in the forefoot, have two heat settings, and, as a set with two rechargeable batteries, are the more affordable option.
How soon will my order arrive?
All heated socks are available from our warehouse in Switzerland. Order by 3:00 p.m. and receive your order the next business day.
Any questions? Email us at info@bergfritz.ch or call us at 041 511 76 42.
