Questions, answered.

ThermiVest has 9 independent heating zones built into the front, back and collar. Connect the included USB power bank to the vest’s port, then tap the chest control button to cycle between low, medium and high heat. All zones warm up together within seconds.

Every ThermiVest ships with a free USB power bank, so it’s ready to use out of the box — no extra purchase needed. Order a bundle and each vest comes with its own power bank.

It depends on the heat setting: on low you can expect up to 8–10 hours from the included power bank, medium runs up to 6–7 hours, and high delivers maximum warmth for 2–4 hours. The power bank recharges over USB, so there are no disposable warmers to replace.

ThermiVest comes in sizes S through 3XL with a unisex cut that works for men and women, true to size. There’s a detailed size chart on the product page — if you’re between sizes or plan to layer underneath, we recommend sizing up.

Yes — the shell is lightweight and slim enough to layer under a jacket on the coldest days, or wear on its own in milder cold.

Yes. Order 2 vests and each drops to $89, order 3 or more and each drops to $84.99. The discount is applied automatically in your cart — no code needed — and every vest in the bundle still includes its free power bank.

Shipping is free on every order — no minimum, no code.

As soon as your order ships, you’ll receive an email with your tracking number and a live tracking link. You can also view your orders any time from your account.

Every order is covered by our 60-day money-back guarantee. If ThermiVest isn’t for you, contact us within 60 days of delivery and we’ll make it right.

Yes. Checkout is fully encrypted and your payment details are processed by our payment provider — they never touch our servers.