The desk
Eight hours, five days a week. The biggest total by far.
MEMORY FOAM · FOR CHAIRS YOU'RE STUCK IN
Hour five should feel like hour one.
Cut away under the tailbone. Curved up behind the waist. One piece of moulded foam doing both jobs.
BUNDLE & SAVE
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ARCOVA
Regular price
A$79.99
Regular price
A$79.99
Sale price
A$99.95
Unit price
per
WHAT ACTUALLY HAPPENS
It never starts at hour one.
0:20
Fine.
Chair's adjusted, you're settled in. No complaints.
1:30
First shift.
You cross a leg, or lean onto one hip, without really noticing you did it.
3:00
The stiffness sets in.
Lower back's gone tight. You stand up mid-call just to straighten out for a minute.
5:00
Sitting around it.
Slumped forward, one elbow on the desk, sitting slightly crooked — and you feel it the moment you stand.
Different chair, same five hours. The seat changes; your lower back doesn't.
0:20
Fine.
Seat's adjusted, mirrors set. No complaints.
1:30
First shift.
You move your weight onto one side without really noticing you did it.
3:00
The stiffness sets in.
Lower back's gone tight. You arch against the seat at the lights to stretch it out.
5:00
Sitting around it.
Elbow on the door, one hand on the wheel, sitting slightly crooked — and you feel it when you get out at the servo.
Different chair, same five hours. The seat changes; your lower back doesn't.
WHY IT HAPPENS
Your whole weight lands on one small spot.
When you sit, your body weight is funnelled down through the base of your spine and the two sit bones underneath you. On a flat seat that load concentrates into a few square centimeters — right where your tailbone is.
For a short trip you don't notice. Over hours it goes numb, and you start unconsciously shifting onto one side to take the weight off — which is the thing that leaves you stiff when you finally stand.
This cushion is cut away at exactly that point. Your tailbone sits over an empty space and carries nothing. The weight moves out to the sit bones and thighs, which are built to take it.
And there's a second half to it. Your lower back curves inward; almost every seat you sit in is built close to flat. So while your tailbone is taking too much, the small of your back is getting nothing at all — which is why you end up arching against the seat to stretch it out. The same piece of foam curves up to fill that hollow too.
One curve. Two things it's fixing.
Sitting badly is two problems, not one — pressure underneath you, and a hollow behind you. Most cushions pick a side. Arcova is moulded as a single arc that runs under your hips and then sweeps up behind your waist, so it covers both. That arc is where the name comes from.
UNDER YOUR HIPS
1
A cut-out under the tailbone
It goes all the way through — hold it up and you can see daylight. Your tailbone bridges over open space instead of pressing into foam.
2
A channel down the middle
A groove following the line of your spine, so nothing pushes up against it while you sit.
3
Raised on both sides
The edges sit higher than the middle, taking pressure off the backs of your thighs and stopping you sliding forward on a long stint.
BEHIND YOUR WAIST
4
The curve keeps going up
The same piece of foam rises behind you and fills the hollow your lower back leaves against a flat seat. Nothing to position separately, nothing to slide out of place — it's one piece, so the two parts can't drift apart.
Slow rebound memory foam through all of it — it compresses to your shape and then eases back rather than pushing against you the whole time you're sitting.
Most people end up buying this twice.
Look at how these are sold and you'll notice something: a seat cushion is one product, and a lumbar pillow is a different product. Sitting comfortably usually means buying both — which lands somewhere between fifty and eighty dollars once you've bought each one separately.
Arcova is a single moulded arc that does both jobs, for less than the two of them together.
And there's a practical side to it beyond the money. Two separate pieces are two things that shift when you get in and out — one slides forward, the other rides up the seat back, and you spend the drive rearranging them. One piece can't drift apart from itself.
Press it. Count to five
Ordinary foam springs straight back the moment you lift your hand. Slow rebound memory foam takes its time — it holds the shape you pressed into it and eases back over a few seconds.
That's what makes it work in a seat. It moulds to where you actually sit rather than pushing back against you the whole drive.
One cushion. Every chair you're stuck in.
It isn't fixed to anything, so it goes where you go. Most people end up moving it between two or three seats — which is why a lot of orders are for more than one.
Behind the wheel
Commutes, long hauls, and rideshare shifts.
Gaming and study
Sessions that run longer than you planned.
Flights
Light enough to go in the carry-on.
The cut-out goes at the back.
That's the whole setup. Put it on the seat with the notch facing the seat back, then sit down and slide yourself right to the rear of it — the cut-out only does its job if your tailbone is actually over it.
Sitting too far forward is the one mistake people make, and it's why a cushion can feel like it isn't doing anything. Push your hips all the way back first, then settle in.
SPECIFICATIONS
The numbers.
Dimensions
44 × 42 × 32 cm
Approx. 17.3 × 16.5 × 12.6 in
Construction
One-piece design
Seat cushion + lumbar support in one
Core
Slow-rebound memory foam
Compresses to your shape and gradually recovers
Tailbone relief
Centre cut-out
Open channel beneath the tailbone area
Support profile
Contoured seat + raised back
Supports the hips and lower-back curve together
Cover
Breathable fabric
Soft-touch outer surface for everyday seating
Portability
Freestanding
No straps or permanent installation required
Suitable for
Office · Car · Gaming · Travel
Easy to move between different seats
In the box
1 × Arcova cushion
Integrated seat and lumbar cushion
Sixty nights. Then decide.
You can't tell from a photo whether a cushion suits your seat. Sit on it for two months — at the desk, in the car, wherever the hours go. If it isn't doing anything for you, send it back for a full refund. That's on top of your rights under the Australian Consumer Law. Every Arcova ships free anywhere in Australia, with tracking emailed the day it leaves.
Questions, answered
Everything you'd want to know
Which way round does it go?
Which way round does it go?
The cut-out faces the back of the seat. Then sit right back into it so your tailbone is over the gap — not perched on the front edge. Sitting too far forward is the one mistake people make, and it's why a cushion can feel like it's doing nothing.
Will it suit my chair or car seat?
Will it suit my chair or car seat?
It doesn't attach to anything specific, so the shape of the seat matters more than what kind of seat it is. It suits most seats with a fairly flat back — office chairs, car seats, dining chairs, plane seats. Deeply bucketed sports seats and high-end ergonomic chairs already have their own lumbar bolster and may not need it.
Will it change how I sit in the car?
Will it change how I sit in the car?
It lifts you about 5–7.5 cm. Most people drop the seat a notch and don't think about it again, but if you're tall or your car has low headroom it's worth a quick check before you order. In an office chair you just lower the gas lift.
Can I move it between my chair and my car?
Can I move it between my chair and my car?
Yes, and most people do. It's the same gap in both. That said, moving it back and forth is the main reason people end up ordering a second one, it's easier to leave one in each seat than to remember it every morning.
How long is delivery?
How long is delivery?
5–9 business days anywhere in Australia, shipping free. Tracking emailed when it leaves the warehouse.
Sit the same way at hour five.
Sixty nights to find out whether it works for you.
Free shipping Australia-wide