Mobile Warming by Fieldsheer

Mobile Warming® Heated Socks

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Start Your Outdoor Adventure On The Right Foot

The Mobile Warming Heated Socks are a thoughtful blend of comfort and Mobile Warming’s® Mobile Warming® technology powered by our Powersheer® USB-C 3.7-Volt Lithium-ion battery that provides long-lasting warmth for up to 16 hours on a single charge. take all-day comfort to the next level. Whether you’re in deep back country powder or an early morning job site, keep your feet warm and improve circulation to avoid stiffness, muscle fatigue, and soreness. With heavy cushioning in key areas and heating elements under the front of the foot, you can avoid the discomfort and numbness that come with being outside in cold conditions. The Merino Wool fabric blend is breathable, and the full-calf length provides comprehensive coverage. Use our simple 4-button remote control to adjust your heat settings, ensuring you maintain complete comfort and control.

Technology by Fieldsheer®

Natural Merino Wool Anti-Odor

Organic Merino Wool fibers help to prevent unappealing smells with its natural anti-odor properties.

Lithium-ion Batteries

We only use the highest quality Lithium-Ion batteries to ensure long-lasting power and battery life. Calf contoured and comfortable, Mobile Warming® batteries are designed specifically for each garment to power your Fieldsheer® with Mobile Warming® Technology product for hours.

Wireless Control with Included Remote Control

Control the heat wirelessly with our simple 4 button remote control. Control at your fingertips. 

Merino Wool Fabric Blend

Our Merino Wool fabric blend is breathable, and the full-calf length provides comprehensive coverage.

Fieldsheer® Heated Sock Features

  • Compact, Comfortable 3.7 volt Rechargeable Lithium-Ion Battery
  • USB Charging Compatible (use any universal wall adapter you already own to charge)
  • Up to 16 Hours of Heat Per Charge On Lowest Heat Setting
  • Hidden Wires, Calf Contoured Battery, and Low Profile Heat Panels
  • Improved wire channel to keep internal wire in place
  • Merino Wool Fabric Blend
  • Sock Content: 54% Merino Wool, 37% Nylon, 6.6% Polyester, 2.4% Elastane (Lycra)
  • Moisture-Wicking Fabric
  • 4 Selectable Heat Settings
  • Integrated Battery Compartment
  • Over-the-Calf Height
  • Improved stretch at top of sock
  • Model # MWUS2522
  • Available in MD, LG, XL. Consult our Size Chart or refer to the back of your packaging.
    *If your local warehouse is out of your size, order from
  • Download the User Manual.


If you have any issues with your socks, please contact us directly instead of returning to the store.


Our warranty applies only to the original purchaser and only for items purchased from an authorized Fieldsheer® Dealer.


Register your socks to activate your limited one year warranty. Inside your box are instructions for how to register your product. When you purchase a Fieldsheer® brand product from an authorized Fieldsheer® retailer within the United States the materials and construction of the product is warranted to be completely free from factory defects in materials and workmanship for a period of one (1) year from the date of purchase. If any failure in the fabrics or construction of any Fieldsheer® product covered under this warranty occurs due to the manufacturer’s defect within one (1) year of the purchase of the product, the product will be repaired at no charge.


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