

The chair did this, not the training.
Desk workers sit for most of the workday, and closer to fifteen hours once you count the evening. Add a commute and a few sessions a week and it adds up fast.
That stiff feeling when you get out of the car is not something you did wrong. It is what a day like that builds.
Twenty minutes of warmth takes most of it back out. The catch has always been what warmth costs first: an outlet, a flat surface, and twenty minutes of doing nothing else. A day built like that one does not hand out twenty minutes of nothing.
What it looks like in an ordinary day
What it's for

Get warm without lying down
Heat works. What it costs you is twenty minutes flat on your back next to an outlet — affordable on a quiet Sunday, impossible on the day you actually want it.

Stand up without unplugging anything
A six-foot cord decides where you sit, and one hand ends up holding the pad, so you cannot type. This charges over USB-C and goes where you go.

Stay in the room
Getting warm used to mean leaving the room. This is an inch thick and sits flat under a shirt, so nobody at the table knows it is there.

Show up on the days you used to skip
A charged belt in your bag takes the excuse away, because you no longer have to stop everything for twenty minutes. Every one carries a one-year warranty, and a failure inside the year gets you a new one rather than a repair.

The one that fits inside your day
You use the gear that fits inside your day. The rest end up under the bed with the foam roller. We wear ours twice: once before training, once in the car home.
What it changes, day to day
Get warm without lying down
Get warm without lying down
Heat works. What it costs you is twenty minutes flat on your back next to an outlet — affordable on a quiet Sunday, impossible on the day you actually want it.
Stand up without unplugging anything
Stand up without unplugging anything
A six-foot cord decides where you sit, and one hand ends up holding the pad, so you cannot type. This charges over USB-C and goes where you go.
Stay in the room
Stay in the room
Getting warm used to mean leaving the room. This is an inch thick and sits flat under a shirt, so nobody at the table knows it is there.
Show up on the days you used to skip
Show up on the days you used to skip
A charged belt in your bag takes the excuse away, because you no longer have to stop everything for twenty minutes. Every one carries a one-year warranty, and a failure inside the year gets you a new one rather than a repair.
The one that fits inside your day
The one that fits inside your day
You use the gear that fits inside your day. The rest end up under the bed with the foam roller. We wear ours twice: once before training, once in the car home.
$79.99, free shipping. Sixty days to send it back for any reason.

Why this one runs hot without a cord
A toaster glows hot in one thin line. A heated blanket warms the whole thing, evenly, on far less power. Same electricity, completely different part.
Almost every heating pad ever made is the toaster kind: a coil of wire. On a battery it runs cool and then it runs out, which is where cordless heat got its reputation.
This heats with a printed graphene film instead — one flat panel, the kind inside heated jackets for years. A battery can drive a panel properly warm when it cannot drive a wire.
So you get three heat levels that hold their temperature. And because heat is a wide thing and some days it is one spot, there is a vibration motor in the panel you can slide onto exactly where it is tight.
$79.99 once, worn on the days you would have skipped it.
The price is not the number that matters. How many days a year it actually gets worn is.
What $79.99 gets you
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Price
$79.99
One belt and a carry case. Free shipping.
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Guarantee
60 days
Try it for 60 days. If you still grab the old heating pad, send this one back. Full refund, even if you never wore it. Return label by email.
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Warranty
1 year
If it breaks inside the year you get a new one, not a repair.
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Support
Reply within a day
Email support@unknotrecovery.com, answered personally by the president of Unknot.
$79.99, free shipping. Sixty days to send it back for any reason.
Add the Neck & Shoulder Wrap, the Knee Wrap, or a second Heat Belt and any two are $129.99. All three are $169.99.
Buying it for somebody else works the same way. There is nothing to install and nothing to plug in. One charge before the first wear, and the sixty days belong to whoever ends up wearing it.
Give someone their evening back
Whoever you are buying for has the same six o'clock you do. The drive, the chair, and an evening that is mostly gone by the time they sit down in it.
This gives that evening back. It goes on under a shirt and works while they keep moving, so it costs them nothing to use.
Nothing to install and nothing to plug in. One charge before the first wear, $79.99 with free shipping, and the sixty days belong to whoever ends up wearing it.
Specs
Full specifications
Full specifications
Heating element — graphene far-infrared film (a printed panel, not a wire coil)
Heat levels — 3: 104–113°F, 122–131°F and 131–140°F
Heat-up — under 5 minutes
Battery — 5,000 mAh; 2–3 hours on medium, 1.5–2 on high
Charging — USB-C, 3 hours to full
Auto shut-off — 30 minutes, then it ends the session on its own
Vibration modes — 3 intensities, soft to strong, run with the heat or on their own
Fit — adjustable strap, 42 inches laid flat, worn around the lower back or low across the stomach; panel 8.3 inches tall
Thickness — 1 inch at the panel
Weight — 1 lb
Certifications — CE / RoHS
In the box — belt, USB-C cable, carry case, quick-start card
Common questions
Will I actually feel it?
Will I actually feel it?
Yes. The panel warms evenly across the full span rather than in a hot stripe, and holds its temperature. Level 1 or 2 against skin; level 3 over a thin layer.
What does the vibration do?
What does the vibration do?
It gives you something you can aim. The heat covers the span, the motor covers one spot. Slide the belt until it sits where you want it. Three modes, with the heat or on their own.
Can I wear it without anyone noticing?
Can I wear it without anyone noticing?
Yes. About an inch thick at the panel, flat under a shirt, and on the lowest vibration mode you can feel it while the room cannot hear it.
Can I use it on the cramps day?
Can I use it on the cramps day?
That is one of the days this was shaped for. It sits low across your stomach or lower back and stays warm while you are standing, walking or at a desk. What it does for you on that day is your call, not our claim.
How long does a charge last, and will it be charged when I need it?
How long does a charge last, and will it be charged when I need it?
About 2–3 hours on medium, 1.5–2 on high, and roughly 3 hours to charge over USB-C. Charge it first, then wear it. A wire coil drains a battery fast; a printed film is the reason those numbers are what they are.
Can I fall asleep in it?
Can I fall asleep in it?
Yes. The auto shut-off ends the session on its own after about 30 minutes and there is no cord running to a socket. Use a lower setting overnight.
When will it arrive, and what if I don't like it?
When will it arrive, and what if I don't like it?
Orders ship within 1 business day, tracked, free, to US street addresses only. Allow 5–10 days for delivery. You then have sixty days to send it back for a full refund, for any reason, and a one-year warranty against defects.
Does this only make sense if you train?
Does this only make sense if you train?
No. Training builds it fastest, but a chair, a car and enough years get to the same place without a session in sight.
$79.99, free shipping. Sixty days to send it back for any reason.
Don't let a sore back take your evening.
Show up fresh on a day you'd normally write off.
The Unknot Heat Belt is $79.99, with a carry case. You get 60 days to change your mind, and a one-year warranty that replaces it rather than repairing it.
Free shipping, and $79.99 is the price at checkout.