Sit longer, in comfort
A U-shape memory foam cushion that takes pressure off your tailbone at your desk, in the car or on the go.
- U-shape tailbone cut-out
- High-density memory foam
- Free US shipping
From $59.90 · Free US shipping · 30-day returns

PERFECT FOR
SOUND FAMILIAR?
5 signs your seat needs our cushion
- Your tailbone feels sore after sitting for a while
- You keep shifting in your seat to get comfortable
- Your lower back feels tired by the end of the day
- Your office or car seat feels hard or flat
- You slouch more as the day goes on
If two or more sound like you, a U-shape memory foam cushion is made for your day.

Office, car, anywhere
The non-slip bottom keeps it in place on office chairs, car seats, dining chairs and wheelchairs. Light enough to take with you on flights and road trips.
Shop NowWhy it feels different
Tailbone cut-out
The open U at the back keeps your tailbone off the seat.
Firm memory foam
High-density foam that adapts to you and keeps its shape.
Better sitting posture
Contoured shape that helps you sit more upright.
Washable cover
Breathable mesh cover that zips off and goes in the wash.
Why the U-shape works
Open U cut-out
The U-shaped gap at the back means your tailbone does not press on the seat while you sit.

Contoured surface
Gentle curves cradle your thighs and spread your weight more evenly across the cushion.

High-density foam
Memory foam that moulds to you and bounces back, day after day, instead of going flat.




Not just another pad
An honest comparison with what most people sit on.
| Kelvoco cushion | Flat chair pad | Cheap foam cushion | |
|---|---|---|---|
| Tailbone cut-out | ✓ | ✕ | Varies |
| High-density memory foam | ✓ | ✕ | Thin foam |
| Keeps its shape | ✓ | Flattens | Flattens fast |
| Non-slip bottom | ✓ | ✕ | Varies |
| Washable cover | ✓ | Varies | Varies |
Order with peace of mind
Every order comes with the same promise.
Damaged or wrong item?
We send a replacement or a full refund, at no cost to you.
30-day returns
Return unused items in their original packaging within 30 days of delivery.
Free tracked US shipping
Delivered in 6–12 business days, with tracking by email.
Good questions, honest answers
Will it fit my chair?
It measures about 45 x 35 x 7 cm (17.7 x 13.8 x 2.8 in), which fits most office chairs, car seats, dining chairs and wheelchairs.
Which way round does it go?
Put the open U cut-out at the back of the seat, then sit all the way back so your tailbone sits over the gap.
Is it soft or firm?
It is medium-firm high-density memory foam: soft enough to be comfortable, firm enough not to bottom out. Many people need a couple of days to get used to it.
Can I wash it?
Yes, the mesh cover zips off and can be machine washed on a gentle cold cycle. Let it air dry. The foam itself should not be washed.
Does the new foam smell?
New memory foam can have a light smell when you unpack it. Leave it in a ventilated room for a day or two and it goes away.
Will it help with my back or tailbone pain?
It is a comfort product, not a medical device. It takes pressure off the tailbone and helps you sit more upright, which many people find more comfortable. If you have ongoing pain, please talk to your doctor.
When will my order arrive?
Orders ship free to the US and arrive in 6–12 business days (Monday to Friday), with tracking by email.
What if I change my mind?
You can return unused items in their original packaging within 30 days of delivery. If your order arrives damaged or wrong, we replace it or refund you at no cost.