Evivna™ Seat Cushion
Evivna™ Seat Cushion
Connected air cells spread your weight off the tailbone
Air, not foam. Foam quits after a few hours. Air doesn’t.
You set the firmness. Pump to firm, tap the valve to soften.
The spots a long day of sitting finds first: tailbone, sit bones, hips
100 day money back. Free return shipping.
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📏 Size & weight
📏 Size & weight
Dimensions: 17.3 × 17.3 inches, about 1¾ inches thick fully inflated
Weight: 10.6 oz, about as much as a pair of socks
Supports up to: 440 lbs
Fully inflated it lifts you about an inch and three quarters, and you probably won’t run it full. Let a little air out and you sit lower and softer. Start softer than you think.
It’s 17.3 inches square, so if the chair runs narrow, grab a tape measure before you order. At under eleven ounces, it moves from the armchair to the car to the dining chair without a second thought.
Why this cushion works
Why this cushion works
Most seat cushions are foam, and foam holds you up by pushing back when it’s squashed. After a few hours under your weight, it stops pushing back. You sink, and you finish the afternoon sitting on a thin, packed layer.
Air works differently. Air holds you up by pressure, and pressure doesn’t get tired at hour four. The Evivna is a grid of connected air pockets. Press down harder in one spot, like under your tailbone, and the air moves into the neighboring cells instead of pushing back harder. Your weight spreads across the seat instead of piling up on one sore point.
And you set it yourself. Pump to firm it, tap the valve to soften it, until it fits your body instead of an average one.
Care & cleaning
Care & cleaning
About thirty seconds at the kitchen sink. Deflate it, rinse it off, wipe it down, and let it air dry while the kettle’s on. No washing machine, and no waiting two days for a foam cushion to dry out.
Spilled tea, crumbs from lunch at the table, whatever the dog brings in. It all wipes off the same way.
How to inflate & adjust
How to inflate & adjust
Ready in under a minute. The pump is built in, no tools.
- Flip open the valve cap.
- Press the pump 30 to 40 times with your palm.
- Sit down in the chair where it’ll live, then tap the valve to let air out a little at a time. You’ll sit lower and softer with every tap. Stop when the seat feels like yours.
- Snap the cap shut so the air stays where you set it.
Softer than you’d expect is usually the sweet spot, and it can take a couple of tries to find yours. Once you do, count your pump presses. Then you can set it in seconds, in any chair.
Prefer to see it? Scroll down for the visual guide.
Returns & refunds
Returns & refunds
You can’t test sit a cushion through a screen. So take 100 days and do it properly. That’s a full season of long afternoons, not one quick sit.
If it’s not right for you, reach out through our contact page within 100 days of your order and we’ll send you a prepaid return label and a full refund. No restocking fee, no return shipping cost, no twenty questions.
pageSep29
Finally, a cushion that
doesn’t quit at hour three
Most cushions make the first hour feel solved. Then the foam starts packing down. You start shifting. By the second hour you’re thinking about the chair instead of the conversation, and somewhere around hour three the hand goes under the thigh.
The Evivna doesn’t use foam, so there’s nothing in it to pack down. Air holds you up by pressure, and pressure doesn’t get tired. The firmness you set after breakfast is still there at dinner. Set it to your own body, let air out until it feels right, and take 100 days to find out in your own chair.
paageOct11b
Let the air
carry the load
When the foam under you packs down, the seat stops doing its share. You feel it as the fidgeting: shifting every few minutes, bracing on the armrest, the hand under the thigh somewhere past hour two.
Air doesn’t work like foam. It holds you up by pressure, and pressure doesn’t get tired. The seat keeps doing its share at hour four, and the firmness stays the one you chose. The only way it changes is if you change it.
Weight spread across the cells, not stacked on the tailbone
Firmness you set yourself. Change it anytime until it feels right
Grips the seat. Stays where you put it
Why air works
Foam gets tired.
Air doesn’t.
It’s easy to blame your own body. Sometimes it’s just the foam underneath you: foam supports you by pushing back when it’s squashed, and after a few hours it stops pushing back. Air supports you by pressure. The Evivna is connected pockets of air you set yourself. Support that doesn’t fade the way foam does.
Try it for 100 days →Full money back. Free return shipping. No restocking fee.
Air instead of foam — the support you set doesn’t fade the way foam does
Set to your own body — pump to firm it, tap the valve to soften, in seconds
100 days to test it on your own seat — full money back, free returns
About a minute to set up..
Oct12
Foam, gel, or air
You’ve probably tried
the other two
Foam packs down under you. Gel comes in one firmness, like it or not. Air is the one you set yourself.
Evivna™
Memory foam
Gel honeycomb
Full money back. Free return shipping. No restocking fee.
FAQ
How is this different from the cushions I’ve already tried?
How is this different from the cushions I’ve already tried?
Most cushions work the same way whether they’re foam or gel: a material gets squashed and pushes back. The firmness was decided at the factory, and after a few hours in the seat the material stops pushing back the way it did in hour one.
The Evivna holds you up with air instead. Your weight spreads across connected air cells, and the firmness is yours to set — press the built-in pump to firm it up, tap the valve to soften it.
So if the seat ever stops feeling right, you don’t replace it. You adjust it.
Will it fit my seat?
Will it fit my seat?
It’s about 17 inches square, sized to cover an armchair seat, a dining chair, a car seat, or a recliner without hanging over the edges. It weighs about 10.6 ounces, so moving it from chair to chair takes one hand.
Fully inflated it’s about 1¾ inches thick. If that sits you higher than feels right, tap the valve and let a little air out until the height is yours. The thickness is yours to set, same as the firmness. A textured base grips the seat and helps it stay put.
How long before I notice a difference?
How long before I notice a difference?
Honest answer: nothing needs to kick in. This isn’t a treatment, and air doesn’t need breaking in the way foam does. The only thing that takes time is finding your setting.
Plan on an afternoon or two of small adjustments. Sit, let a little air out, sit again, and start softer than you think. Once the firmness feels like yours, it stays where you set it.
Whether it’s right for you is what the 100 days are for. Real afternoons, in your own chair, with a full refund if the answer is no.
How does the 100-day guarantee work?
How does the 100-day guarantee work?
Simple. Order it, set it to your body, and live with it for up to 100 days. If you decide it’s not right for you, for any reason, reach out through our contact page and we’ll refund the full price. We cover the return shipping, and there’s no restocking fee.
The 100 days is on purpose. A cushion can’t be judged in the first ten minutes. It gets judged somewhere around hour three of an ordinary afternoon, and we’d rather you have a whole season of long afternoons to decide than a nervous couple of weeks.
How long does shipping take?
How long does shipping take?
Orders arrive within 5 to 7 business days, depending on where you are in the US. You’ll get a tracking number by email as soon as your order is on its way.
If there’s an appointment or a visit on the calendar, count back a week. Most people like an afternoon or two to dial in the setting first.