
FAQs
Is a power bank included?
Is a power bank included?
No. The vest has a USB cord inside a zippered pocket, and you connect it to a USB power bank
Which power bank should I use?
Which power bank should I use?
Use one with a higher power output: the higher the output, the stronger the heat. Examples: 10W (5V/2A) or 22.5W (5V/4.5A)
How long does one charge last?
How long does one charge last?
It depends on your power bank’s capacity and the heat level you choose. A larger-capacity power bank keeps it running longer
How do the controls work?
How do the controls work?
Hold the chest switch for 3 seconds to start, then tap to switch between Low, Medium and High. Hold again (or unplug) to turn it off.
Is it safe to wear?
Is it safe to wear?
It runs on USB power from your power bank and stops heating as soon as it’s unplugged.
What size should I order?
What size should I order?
Sizes run small. Compare your chest measurement to the size chart, and if you’re between sizes, size up.
Can I machine wash it?
Can I machine wash it?
Yes, it’s machine washable (86°F / 30°C). Unplug the power bank first.
Just Add a Power Bank
The vest comes with its own USB cord. Plug it into a power bank and you’re warm. A higher output means stronger heat, and a larger capacity keeps it going longer.
Power bank sold separately.
When Layers Aren’t Enough
You’ve added the sweater, then the jacket, and you’re still cold. More layers hold your warmth, they don’t make it. This vest adds heat across your back, front and collar, and you choose how much.
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