Men's Electric Heated Long Johns Thermal Underwear USB Power Flatlock Seams Winter Base Layer Clothing Set

Stay comfortably layered in colder conditions with this men's electric heated thermal underwear set. The two-piece design includes a long-sleeve crewneck top and matching long pants with built-in heating zones powered through a USB-A connection. Soft knit fabric, flatlock seams, an elastic waistband, and fitted ankle cuffs create a practical base layer for winter activities, commuting, travel, and everyday cold-weather wear.

Practical Warmth Benefits

✓ Built-In Heating Zones: Integrated heating elements provide targeted warmth across designated areas of the base layer.
✓ USB-A Power: The heating system connects through a USB-A power connector for convenient operation with compatible power sources.
✓ Soft Knit Fabric: The fabric provides a flexible base layer suitable for wearing beneath other clothing.
✓ Flatlock Seams: Flatlock construction creates a smooth seam design for layered clothing.
✓ Secure Fit: An elastic waistband and fitted ankle cuffs help keep the two-piece set positioned while worn.

Product Features

Two-piece heated thermal underwear set
Long-sleeve crewneck top
Matching long pants
Built-in heating zones
USB-A power connector
Soft knit fabric
Flatlock seams
Elastic waistband
Fitted ankle cuffs
Available in black and heather grey
Sizes S, M, L, XL, XXL, XXXL

Suitable For

✓ Winter Sports: Use as a heated base layer beneath outerwear for skiing and other cold-weather activities.
✓ Outdoor Activities: Add an electrically heated layer for suitable outdoor work and recreation.
✓ Travel and Commuting: Wear beneath everyday clothing during cold-weather journeys and commutes.
✓ Indoor Wear: Use as a warm base layer at home during colder periods.

Specifications

Style: Two-piece set with long-sleeve crewneck top and long pants
Material: Soft knit fabric with flatlock seams
Heating Technology: Built-in heating zones with USB-A power connector
Waistband: Elastic
Ankle Cuffs: Fitted
Colors: Black, heather grey
Sizes: S, M, L, XL, XXL, XXXL
Design Details: Men's button-fly style

Package Includes

1 x Heated Thermal Underwear Set with Top and Pants

Care and Use

Wear the top and pants as a base layer beneath suitable clothing, then connect the USB-A power connector to a compatible power source when using the heating function. Follow the product care instructions for the fabric and heating components, and store the set in a cool, dry place between uses.