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5.1 Heat Sock

5 out of 5 stars
1 Review
Color:One Color


Size Chart


Why We Like the Lenz 5.1 Heat Sock

We gear up with the Lenz 5.1 Heat Sock to keep numb toes at bay on the mountain's chilliest days. This sock features a flat heating system integrated into a mix of high-performing materials for up to 14 hours of all-around warmth. The low-profile, rechargeable battery pack snaps right in and out of the sock cuff and can be controlled directly or from the Lenz heat app on our phone to adjust the temperature.


  • Heated socks provide all-day warmth on the mountain
  • Merino wool blend sock material is moisture-wicking
  • Sock is anatomically knitted for a performance fit
  • Sewn-in 360° heating element provides low-bulk warmth
  • Compatible with Lens Body Heat System lithium packs
  • Toe Cap technology surrounds entire toe area with heat
  • Sock does not include a Lenz Heat System lithium pack
  • Item #LENC00D
30% polyester, 25% merino wool, 20% nylon, 15% polyacrylic, 5% silk, 5% spandex
Battery Type
lithium pack
Battery Life
up to 14hr
skiing, snowboarding
Manufacturer Warranty
limited 1 year