1 / 7PRIMART Lower Back Support Seat Cushion, L-Shape Memory Foam
Memory Foam: The PRIMART Lower Back Support Seat Cushion combines a contoured seat pad with built-in lumbar support in a single L-shaped design. Its cutout, washable cover and non-slip base are intended for use on office chairs, car seats and other seating, though the listed height is worth comparing with your chair before buying.
At a glance
- Single-piece seat and back support with an L-shaped profile and integrated lumbar section.
- Tailbone relief cutout and raised side wings are described as part of the contoured design.
- Listing says the polyester cover is removable, breathable and machine washable, with a non-slip base.
- Listed for office, vehicle, dining and gaming seats, among other seating surfaces.
Reference price: $54.99
Price checked: Nov 14, 2026
View offerAhead of Black FridayExplore the selectionPros and cons
Pros
- Combines the seat cushion and lumbar support rather than requiring separate pads.
- Removable, machine-washable cover makes the cover easier to care for.
- A non-slip base is intended to help the cushion stay in place.
Cons
- The 16-inch listed height may be a substantial addition to a chair, so confirm it suits your seat and backrest setup.
Technical specifications
15 specifications| Brand | PRIMART |
|---|---|
| Model | Lower Back Support Seat Cushion |
| Form factor | L-shape |
|---|---|
| Dimensions | 19.5"L x 16"W x 16"H |
| Weight listed | 3.8 pounds |
| Size | Standard |
| Material listed | 100% High-density Memory Foam, 100% Polyester Cover |
|---|---|
| Fill material | Memory Foam |
| Care instructions | Machine Wash |
| Firmness listed | Medium Soft |
| Color | Black |
| Pieces | 1 |
|---|---|
| Age range | Adult |
| Target body part | Buttocks |
| Recommended uses | Tailbone Pain Support, Coccyx, Back, Sitting |
What to know before buying
- The listing describes the cover as breathable, removable and machine washable, but does not specify a washing method beyond machine washing. Its stated size is 19.5 inches long by 16 inches wide by 16 inches high, and the feature copy calls it lightweight and portable without giving a separate packed size.
Who is it for?
A good fit for
- Adults seeking one cushion that combines seat padding with built-in lumbar support.
- Office workers, drivers or gamers considering added support for a compatible chair.
- Buyers who want a removable cover that the listing says is machine washable.
Less suited to
- People needing an independently adjustable lumbar pillow or a cushion with a specifically stated lower profile.
- Buyers who need verified pain treatment or a guaranteed posture or spinal-alignment outcome.
Customer reviews on Amazon
- 5 stars
68% 68% - 4 stars
8% 8% - 3 stars
14% 14% - 2 stars
2% 2% - 1 star
8% 8%
Aggregate ratings lean positive, with many five-star ratings, but a meaningful share are three stars or lower. Without written feedback, the reasons for those ratings are unknown. Treat the ratings as a limited general signal rather than evidence that the cushion will relieve pain or suit a particular chair.
Frequently asked questions
Does this cushion include lumbar support?
Yes. The listing describes a single L-shaped cushion with built-in lumbar support and a contoured seat section.
Can the cover be washed?
The listing says the polyester cover is removable and machine washable. It does not give more detailed washing instructions.
What are the listed dimensions?
The listed dimensions are 19.5 inches long, 16 inches wide and 16 inches high. Compare the height with your chair before choosing it.
What seating is it intended for?
The listing names office, car, van, bus, truck, forklift, dining and gaming chairs, and also mentions wheelchairs and airplane seats.
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