Description
Thermal Underwear Set, Heated Long Johns, Carbon Fiber Heated Clothing for Men and Women
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Warmth in seconds, not a slow wait: the carbon fiber heating sheets heat up in just 10 seconds to fight extreme cold
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Heat set the way you like it: three-speed temperature control and a single button let you pick your warmth
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Warm exactly where you feel the cold: heating zones sit at the knees, back and waist of these heated long johns
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Soft on skin, dry and odor-resistant: this winter thermal underwear uses ultra-soft, skin-friendly, moisture-wicking fabric
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Moves with you under layers: four-way stretch fabric keeps a snug fit and excellent mobility
Experience ultimate warmth and soothing comfort when extreme cold sets in. This electric heated set pairs micro-carbon fiber heating with soft, skin-friendly materials for all-day warmth, while easing discomfort in your shoulders, waist and stomach. Pick your heat with one button and the built-in heating sheets reach the warmth you chose in seconds.

Each heated long johns piece is made from 92% ultra-soft polyester and 8% spandex, with heating zones at the knees, back and waist. It comes as thermal underwear for men and thermal underwear for women, in Black or Grey. As heated underwear and heated winter clothing it suits skiing, snowboarding, hunting, cycling or work in cold environments, and its lightweight insulating design is made for long-term wear in harsh conditions.
Why choose Loftim
Heated Thermal Underwear
| Feature |
Loftim |
Others |
| Carbon fiber heating in just 10 seconds |
✓ |
✕ |
| Three heat settings from one button |
✓ |
✕ |
| Heating zones at knees, back and waist |
✓ |
Varies |
| Four-way stretch, ultra-soft fabric |
✓ |
Varies |
| Hand, machine or dry washable |
✓ |
Varies |
| 30-day easy returns |
✓ |
Varies |
Key Features
Built to keep you warm all day:
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Carbon Fiber Heating: micro-carbon fiber heating sheets are built in and give quick, even warmth after just 10 seconds
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Single-Button Operation: one button runs the heat for effortless use
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Lightweight Insulating Design: the light, insulating build suits outdoor adventures and everyday wear

Specifications
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Material: 92% ultra-soft polyester and 8% spandex
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Heat-up time: 10 seconds
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Maximum temperature: 122°F (50°C)
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Temperature settings: 86°F (30°C) (green), 104°F (40°C) (blue), 122°F (50°C) (red)
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Heat levels: Three-speed temperature control
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Heating zones: Knees, back and waist
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Stretch: Four-way stretch fabric
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Sizes: S, M, L, XL, XXL, XXXL
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Colors: Black, Grey (No Heating Women Suits - Blue)
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Pieces: Suits, Jacket, Pants for Men and Women
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Heating options: Heated, or No Heating Men Suits - Black and No Heating Women Suits - Blue
Package Includes:
- Thermal underwear suit, jacket or pants, by variant
Materials
It is made from 92% ultra-soft polyester and 8% spandex for breathability and comfort.
Quick Heating
The set reaches the desired warmth in seconds, with settings of 86°F (30°C) (green), 104°F (40°C) (blue) and 122°F (50°C) (red).
Design
The fabric is super soft, odor-resistant and moisture-wicking, which makes for a comfortable fit.
Fit
Four-way stretch fabric gives a snug fit and excellent mobility, and suits layering or wearing on its own.
Care Instructions
It is hand, machine or dry washable, and gentle cleaning extends the life of the heating film.
Benefits
- It enhances metabolism.
- It reduces muscle stiffness.
- It improves blood circulation.
- The fabric is moisture-wicking and odor-resistant.
- It is designed for both men and women.
- The design is skin-friendly and safe to use.
- The heating technology is reliable and eco-friendly.
Right for you if
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✓You work or play in the cold — built for skiing, snowboarding, hunting, cycling and cold environments
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✓You feel the cold at your knees, back and waist — the heating zones sit at the knees, back and waist
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✓You want warmth fast — the carbon fiber heating sheets heat up in just 10 seconds
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✓You are buying a winter gift — a thoughtful choice for Thanksgiving, Christmas or any special occasion
If two or more of these sound like you, this is the one.
FAQs
Q: How fast does the heated thermal underwear warm up?
A: The carbon fiber heating sheets heat up in just 10 seconds, reaching up to 122°F (50°C).
Q: What are the three heat settings?
A: 86°F (30°C) (green), 104°F (40°C) (blue) and 122°F (50°C) (red), all set with a single button.
Q: Can I wear it skiing or hunting?
A: Yes. It is designed for skiing, snowboarding, hunting, cycling and work in cold environments.
Q: How do I clean the heated long johns?
A: They are hand, machine or dry washable; clean them gently to extend the life of the heating film.
Q: Is it a good winter gift?
A: Yes, a thoughtful pick for parents, partners or friends at Thanksgiving, Christmas or any special occasion. This is heated clothing, not a medical device.