Belly and back warm, arms free
This is a sleeveless undershirt with a V-neck. Built-in heating wires warm your belly, along your spine and over your kidneys. Under a shirt, sweater or cardigan, nobody notices it. The power bank comes in the box.
- 5,000 mAh power bank included – with the heating off, it also charges your phone
- Three heating zones: belly, spine, lower back
- 3 levels via a round inline switch
- Soft, stretchy fabric, brushed inside
- Unisex in black, gray, beige and pink, M to 5XL
For work you don’t want to sweat in
Workshop, greenhouse, warehouse or the way to the office: your arms stay free, your back stays warm. Beige and pink show least under light clothing.
Size: choose by weight
The undershirt runs two to three sizes small. Choose by your body weight, not your usual size. Measurements laid flat, in inches (centimeters in brackets):
- M: 88–110 lb (40–50 kg), chest 31.9 in (81 cm), length 23.6 in (60 cm)
- L: 110–137 lb (50–62 kg), chest 33.5 in (85 cm), length 24.4 in (62 cm)
- XL: 132–159 lb (60–72 kg), chest 35 in (89 cm), length 25.2 in (64 cm)
- XXL: 159–181 lb (72–82 kg), chest 36.6 in (93 cm), length 26 in (66 cm)
- 3XL: 181–203 lb (82–92 kg), chest 38.2 in (97 cm), length 26.8 in (68 cm)
- 4XL: 203–225 lb (92–102 kg), chest 39.8 in (101 cm), length 27.6 in (70 cm)
- 5XL: 225–265 lb (102–120 kg), chest 41.3 in (105 cm), length 28.3 in (72 cm)
Details and what’s in the box
- Heating zones: belly, spine, lower back – shoulders and sides are not heated
- Levels: 3, inline switch
- Power: cable in the flat pocket at the hem
- Care: remove the power bank and cable, wash gently, let it dry completely
- In the box: undershirt, 5,000 mAh power bank
Frequently asked questions
Is the power bank included?
Yes. A 5,000 mAh power bank is included in the price. With the heating off, it also charges your phone.
Which size should I take?
Choose by your body weight. The undershirt runs two to three sizes small.
Can I wear it without power?
Yes. Without the power bank it is a warm undershirt.
Shipping is free on every order. Orders usually leave within 1 to 3 business days, and you get a tracking number by email as soon as yours ships.
- Free shipping, every time
- 14 days to return it for a full refund of the item price
- Damaged or wrong item? We make it right at no cost
Read the full shipping policy and refund policy.
Heated Sleeveless Undershirt, Unisex
- Free shipping on every order
- 14 day money back guarantee
- Real people reply within 24 hours
- Safe, encrypted checkout
Taxes included · Ships free
Made for your days outside
Warmth for every cold weather routine
Built for the everyday hours spent outside in wind, damp air and frost, not just the occasional trip.
Common questions
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Thin heating panels are sewn into each piece and powered by a battery. Depending on the product, that is a pocket power bank, a pair of batteries or a built in cell. Turn it on, pick a level and you are set.
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Yes. Every heated product ships with the battery it needs, whether that is a power bank, a battery pair or a built in cell. There is nothing extra to buy, and the power banks can also charge your phone.
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On the lowest setting with the included battery, the vest lasts about eight hours and the gloves five to six. Each product page lists the run time for every level. Bring a spare battery for longer days.
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Each product page and package includes care instructions. In general, disconnect the battery and cable first and always let it air dry.
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Shipping is always free. You will see the delivery estimate for your country at checkout and on our shipping page.
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You have 14 days to send it back. Email support@emberthreadsapparel.store and we will help you set up the return.
Ready when you are
Order today and stay warm all season
- Ships free on every order
- 14 day money back guarantee
- Safe, encrypted checkout
$129.90
Choose your option