It's not you. It's the chair.

Nobody chose the seat they spend all day in. The car came with it. The office bought it in bulk. The wooden one at home has been there fifteen years.

You're not going to replace any of them. So put something better on top.

Which chair is yours?

The car seat. Two hours in traffic going in, two coming home. Car seats are shaped for the average of everybody, which means nobody. The cushion sits on top and holds you level instead of letting you settle to one side.

The office chair. Picked because it was cheap, not because it was good. By four o'clock you're shifting every ten minutes looking for a position that works.

The one at home. Wooden, plastic, or the dining chair you've been working from since you started working from home. Hard from the first minute.

Memory foam, not sponge

Cheap cushions feel good for a week and then they're flat — you're sitting on a pancake and you're back where you started.

Memory foam presses down under your weight and comes back up when you stand. It shapes to you rather than you flattening it.

Big enough to actually sit on

48 × 43 × 15cm. Most cushions are small enough that you perch on them and your thighs hang off the front, which is worse than nothing.

This one is wide enough to support your hips and the length of your thighs together — which is the whole point of the shape.

Moves with you

Take it out of the car and put it on your office chair. Take it home for the sofa. Take it to the match, the airport, the waiting room.

It's one cushion for wherever you happen to be sitting, not a piece of furniture.

Being straight with you

This is a comfort cushion. It changes how you sit and takes pressure off during long hours in a chair — which for most people is exactly what they needed.

It isn't a medical device. If you have ongoing pain, numbness, or pain that travels down a leg, see a doctor rather than buying a cushion.