Office chair cushions: lumbar or seat
3 min read ยท Posture Pillow Co

A chair cushion changes how a chair looks and feels to sit on. The right one depends on your chair.
Here is a plain guide.
Lumbar cushions
A lumbar cushion goes behind your back.
The Lumbar Cushion for Office Chairs is about 13 x 12 in, with a curved shape.
Seat cushions
A seat cushion goes on the seat. The Memory Foam Seat Cushion is flat, about 17 x 14 x 2 in.
The U-Shaped Seat Cushion is about 18 x 14 x 3 in with a U-shaped cut-out at the back.
Match your chair
Measure the chair seat and back. Compare with the numbers on each page.
Our size and shape guide helps.
Care
The lumbar and flat seat cushions are memory foam, and the U-shaped one is a gel and latex seat. Spot clean and follow the label on each cover.
Browse all our chair cushions.
Which one first?
Start with the chair you use most. If the chair has a flat seat, try the flat seat cushion. If you like a cut-out at the back, try the U-shaped one. If your chair back is bare, the lumbar cushion sits against it. You can use more than one. Free US shipping starts at $35, so two cushions ship free. All sales are final, so check each size on its page.
Questions and answers
Can I use both a lumbar and a seat cushion?
Many people do. Check that the chair has room.
Will it fit a stool?
Check the size on the page.
More pillow guides

Lumbar cushion sizes
Fitting a cushion to your chair back.
Read the guide โ
Seat cushions: flat or U-shaped
Two shapes, two ways to sit.
Read the guide โ
Set up a tidy home desk and chair
Chair, cushion and desk height basics.
Read the guide โ

