Updated October 2026
What Is Lumbar Support?
Your lumbar spine is the lower part of your back, just above your pelvis. It naturally curves inward. When you sit for long periods without support, most people gradually slump: the pelvis tilts back, that inward curve flattens or reverses, and the muscles of the lower back work harder to hold you up. Lumbar support is any feature of a chair that fills that inward curve so your back can rest in a more natural shape.
Note: lumbar support can make sitting more comfortable, but it is not a medical treatment. If you have persistent back pain, consult a doctor or physical therapist.
The Main Types of Lumbar Support
| Type | How It Works | Pros | Cons | Example |
|---|---|---|---|---|
| Fixed curve | Backrest is shaped with a built-in curve | Simple, nothing to adjust | Only fits if the curve matches you | Many budget chairs |
| Height-adjustable | A pad or panel slides up and down | Can match your curve | Fixed pressure | Steelcase Series 1 and 2 |
| Height + firmness | Separate controls for position and pressure | Most precise | More to set up | Steelcase Leap V2 |
| Height + depth | Pad moves up, down, in and out | Precise placement and pressure | Optional on some chairs | Herman Miller Mirra 2 |
| Pelvic support | Supports the base of the spine to position the pelvis | Helps you sit tall | Requires correct sizing | Aeron PostureFit SL |
| Adaptive backrest | Back flexes to follow your spine automatically | Moves with you | No targeted pressure | Embody, Cosm, Karman |
Adjustable vs. Built-In: Which Is Better?
Adjustable lumbar support is generally better because spines differ. The height of your lower-back curve depends on your torso length, and the amount of pressure that feels supportive varies from person to person. A fixed curve only works if it happens to match you.
That said, well-designed adaptive backrests, like the Embody's, suit many people well because they follow your spine as you move. And the Aeron's pelvic support works on a different principle, positioning the base of your spine so the lumbar curve forms naturally.
The Best Chairs for Lumbar Support
Steelcase Leap V2: Most Adjustable Lumbar
Steelcase Leap V2
- Seat: Padded foam
- Arms: 4D (height, width, depth, pivot)
- Lumbar: Height + separate firmness
Separate lumbar height and lower-back firmness controls make the Leap V2 the most precise lumbar system available. Read our Leap V2 review.
Herman Miller Aeron: Best Pelvic Support
Herman Miller Aeron
- Seat: 8Z Pellicle mesh
- Arms: Height, depth, pivot
- Lumbar: PostureFit SL (height + depth)
PostureFit SL supports the sacrum and lumbar curve, helping you sit tall without effort. Read our Aeron review.
Haworth Fern: Best Pronounced Optional Lumbar
Haworth Fern
- Seat: Edgeless foam seat
- Arms: 4D (on upgraded models)
- Lumbar: Optional height-adjustable
The Fern's optional adjustable lumbar is firm and noticeable, which suits people who like strong lower-back pressure. Read our Fern review.
Herman Miller Mirra 2: Height and Depth Adjustment
Herman Miller Mirra 2
- Seat: Suspension seat with FlexFront
- Arms: Fully adjustable (4D)
- Lumbar: Adjustable pad
The Mirra 2's optional adjustable lumbar moves up and down and in and out. Read our Mirra 2 review.
How to Set Your Lumbar Support
- Sit all the way back in the chair.
- Find the inward curve of your lower back, usually just above belt level.
- Move the lumbar support until it sits in that curve, not on your mid-back or tailbone.
- If you can adjust firmness or depth, start light and increase until you feel supported but not pushed forward.
- Recheck after a day or two; small tweaks often help.
See our full guide to setting up your office chair.
Signs Your Lumbar Support Is Wrong
- You feel pushed forward or arched uncomfortably: too firm or too deep.
- You still slump after an hour: too weak or too low.
- You feel pressure on your mid-back: too high.
- You feel pressure on your tailbone: too low.
Lumbar Support vs. Pelvic Support
Most lumbar systems push into the curve of the lower back. Pelvic support, such as the Aeron's PostureFit SL, works lower down, at the base of the spine. By supporting the pelvis so it tilts slightly forward, it helps the lumbar curve form naturally above it. Some people find this more comfortable and less intrusive than a pad pressing into the middle of the lower back; others prefer the direct feel of a lumbar pad. Both approaches aim for the same result: a spine that rests in its natural shape.
Lumbar Support for Different Body Types
- Tall people often need lumbar support positioned higher, so a wide height adjustment range matters.
- Shorter people may find fixed lumbar curves sit too high; adjustable height or a sized chair helps.
- People with a pronounced curve may prefer firmer or deeper support, such as the Leap V2's firmness control or the Fern's optional lumbar.
- People with a flatter back may prefer gentle or adaptive support, such as the Gesture or Embody.
Lumbar Support Compared Across Our Chairs
| Chair | Lumbar Type | |
|---|---|---|
| Steelcase Leap V2 | Height + separate firmness | Check Latest Price |
| Herman Miller Aeron | PostureFit SL pelvic and lumbar | Check Latest Price |
| Haworth Fern | Optional height-adjustable, pronounced | Check Latest Price |
| Herman Miller Mirra 2 | Optional height + depth | Check Latest Price |
| Steelcase Gesture | Built-in; optional height | Check Latest Price |
| Herman Miller Embody | Adaptive backrest | Check Latest Price |
| Steelcase Series 1 and 2 | Height-adjustable | Check Latest Price |
What About Lumbar Pillows?
A lumbar pillow can help on a chair with no support, such as a dining chair or car seat, but it tends to slip and cannot match the precision of a chair designed with adjustable lumbar support. If you sit at a desk daily, investing in an ergonomic chair is a more reliable solution.
Add Lumbar Support to Any Chair
If your current chair has a flat back, a lumbar pillow is an inexpensive fix. See our best lumbar support pillows.
Lumbar Support FAQs
Do I Need Lumbar Support in an Office Chair?
Most people benefit from it during long sitting, because it helps prevent slumping. Adjustable support lets you match it to your body.
Where Should Lumbar Support Hit Your Back?
In the inward curve of your lower back, usually just above belt level.
Can Lumbar Support Be Too Firm?
Yes. If it pushes you forward or feels like a bump, reduce the firmness or depth.
Which Office Chair Has the Best Lumbar Support?
The Steelcase Leap V2 offers the most adjustable lumbar; the Herman Miller Aeron offers excellent pelvic support.