Home > Outdoor > Outdoor Sporting > Heated Ski Gear & Apparel > Lenz Heat Socks 5.1 Toe Cap Regular Fit with rcB 1800 Batteries
Lenz Heat Socks 5.1 Toe Cap Regular Fit with rcB 1800 Batteries

Watch Video for Lenz Heat Socks 5.1 Toe Cap Regular Fit with rcB 1800 BatteriesLenz Heat Socks 5.1 Toe Cap Regular Fit with rcB 1800 BatteriesLenz Heat Socks 5.1 Toe Cap Regular Fit with rcB 1800 Batteries

Lenz Heat Socks 5.1 Toe Cap Regular Fit with rcB 1800 Batteries

Item #:

Item Qualifies for Free Shipping

Never freeze again with patented Toe Cap technology. The flat, sewn-in heating element is not bulky and provides all-round warmth for the toes - for up to 14 hours.

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 knee-high heat sock 5.1 toe cap has an integrated shin protector and protectors in the toe and heel area. Thanks to the ring bandage, the socks do not slip on the foot.

The sophisticated 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 cuff with snaps. The heat socks are compatible with all lithium packs of the Lenz Body Heat System.

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

The Lenz Body heat system warms the body from head to toe. The lithium pack rcB 1800 can be used for all models of the Lenz heated socks, heated vest, heated bandage, heated gloves, heated pants and the LED system.

The lithium packs are connected with push buttons. The lithium packs are small, light and provide up to 20 hours of heat at the touch of a button for work, sports and leisure.

This increases the ability to perform and concentrate, even in cold temperatures, and ensures that blood circulation is maintained.

The lithium packs rcB 1800 can be controlled directly on the lithium pack. With the Lenz heat app, however, the heat can also be regulated continuously via smartphone. Optimal when the lithium packs are under several layers of clothing.


  • Improved elasticity in the calf area
  • Toe Cap technology - all-round warmth for the toes
  • The flat, sewn-in heating element is not bulky
  • Anatomically knitted for optimal fit
  • Ring bandage guarantees stabilisation in the ankle and forefoot area
  • Integrated protectors on shin, toe and heel as well as ring bandage
  • Material mix of merino wool, functional fibres and silk
  • Machine washable at 30 degrees
  • The lithium pack can be attached via press studs on the sock cuff
  • Suitable for all Lenz lithium packs

Batteries Features:

  • Rechargeable
  • Heat generation of up to 20 hours
  • Lithium pack is connected to the respective product with push buttons
  • Heating power manually adjustable on the lithium pack or infinitely variable via Lenz heat app
  • Small, light (95 grams) and compact (8.5 cm x 5.5 cm x 1.5 cm)
  • Charging cable with USB connector


  • 30% polyester
  • 25% wool (merino)
  • 20% polyamide
  • 15% polyacrylic
  • 5% silk
  • 5% spandex

Package Contents:

  • 1 pair Lenz heat sock 5.1 toe cap
  • 1 laundry bag
  • 2 lithium pack rcB 1800 (rechargeable)
  • 1 USB charging cable with charging indicator

High flyers need great support!

Lenz functional clothing has been complying with the highest demands in the worlds of sport, work and leisure since 1987. In addition to optimum wearability, the best fit and the most up-to-date fibre compositions, Lenz functional clothing also stands for the patented S.E.P. System. In order to maintain the consistently high quality of the products, all textiles are developed and produced in Europe.



"Whoever aims high, who needs strong support." Under this motto we support Austrian Olympic team and thus make our contribution to a successful performance at the Olympic Summer and Winter Games.

The athletes of the Summer Games are running and compression socks to provided. The winter athletes will be equipped with functional underwear, ski, compression and Heizsocken, thus are "cold feet" excluded in advance.

Product Reviews

Review Summary
3 Reviews
100% (3)
0% (0)
0% (0)
0% (0)
0% (0)
100% Recommend this product (3 of 3 responses)
By Ashley
Great sock for skiing
February 21, 2024
I’ve worn these socks a few times. I also have boot warmers, so together my feet are very warm. I keep them around 5 while skiing for about 6 hours. So far, there’s still plenty of battery left at the end of the day. I purchased the stronger battery. The app works great to control the socks. I can’t imagine socks without a battery as it would be a pain to access them during the day with all my ski gear. I’ll be trying them today on a winter hike without heated ski boots. I’m guessing they will keep me warm as well. Lastly, I was between sizes as I’m a female US size 7.5. I went with the medium sock and it’s a good fit.
By Pete
Bend, Oregon
Love them
April 6, 2023
Great socks! They keep my feet warm on cold days when I wouldn't be able to ski for very long.
By Tim
They just work
January 6, 2023
Wear them fly fishing in cold mountain streams throughout the winter. You don't notice them--ie: Your feet aren't 'hot', but never cold. (just like I would want)
  • They work.
  • Socks are 'tight' even for a slim build
  • Easy to 'trigger' the battery button with vigorous activity (even walking). ie. have occasionally found that I have inadvertently turned the battery off, just with walking, movement, etc...