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  • Lenz - 4.0 Heat Socks & rcB 1200 Lithium Packs - One Color
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  • Lenz - 4.0 Heat Socks & rcB 1200 Lithium Packs - One Color

Lenz 4.0 Heat Socks & rcB 1200 Lithium Packs


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    • One Color, S/3-6
    • One Color, M/7-8
    • One Color, L/9-11
    • One Color, XL/12-13

    2 Reviews


    4.0 Heat Socks & rcB 1200 Lithium Packs

    The Lenz 4.0 Heat Socks come packed to the brim with all of the attributes you would expect from a performance sock with the added benefit of heat. These socks wick moisture, allow your foot to breath, and eliminate odor all while warming up your toes via subtle heating elements. Small Lithium heating packs press onto studs on the leg band to provide heat and allow you to cycle between the three different temperature settings—you can also use your smart phone to cycle these settings. After a long and comfortable day on the slopes with ultimate climate control toss these socks into the washer like any other socks so that you can enjoy your time on hill tomorrow.

    • Heated socks for unparalleled comfort during outdoor activities
    • Subtle heating elements output three different temperatures
    • Performance fabric wicks moisture, breathes, and eliminated odors
    • Light Lithium packs easily attach to top of sock for comfort
    • Bluetooth connectivity controls the temperatures from your phone
    • Lithium packs charge via the included global USB-charger
    • Item #LEN000B

    Tech Specs

    54% polyester, 29% nylon, 7% merino wool, 5% polypropylene, 5% spandex
    Battery Type
    Battery Life
    Recommended Use
    skiing, snowboaring, snow-shoeing

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

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    A big fan!

      My hands and feet get extremely cold from just the slightest winter temps. These socks are definitely a game changer for me! I've been wearing them out skiing. My feet are still slightly cold but for an average person they will keep your feet nice a toasty. The battery lasted for about half the day which was a bit disappointing, I'm excited to try these out for trail runs & hikes during the early spring and late fall.

      Just one small thing

      • Familiarity: I've used it several times

      Great product that works as advertised. Definitely keeps your feet warm and can last a full day of riding as long as you don't turn them all the way up. Bluetooth functionality is very handy and I haven't had any connection issues. My one complaint, just one small thing, is that there is no way (that I can see) to turn the batteries off, so you always have to charge them the night before you use them.

      How thin are these socks? Are they padded in the toe? Which is thinner, these or the hot Tornio socks? Thanks

      Hi Suzanne!

      These are a semi-thin pretty basic sock design. Comparable to a Darn Tough or Smarwool sock. The Hot Tronic's are going to be pretty similar with minor design difference but nothing drastic. Feel free to reach out with any other questions you may have!