A flat chair seat gets uncomfortable by mid-afternoon, and the best seat cushion for computer chair setups adds the padding the chair left out. We compared five seat cushions, from memory foam to velvet-topped polyester, by stated fill, size, grip and guarantee. Every figure below comes from the Amazon listings, not from our own measurements.
OfficeKitHQ earns a commission when you buy through links on this page, at no extra cost to you. As an Amazon Associate I earn from qualifying purchases. Affiliate disclosure.
Quick picks
Best Overall BUYUE Black Jacquard Cushion: Jacquard cushion with strap and 90-day refund guarantee Check price on Amazon
Best Velvet Pick BUYUE Gray Velvet Cushion: Velvet cushion with silicone anti-slip and 90-day guarantee Check price on Amazon
Best Two Covers OVRST 18-Inch Cushion: 18-inch memory foam with modal and velvet covers Check price on Amazon
Best Contoured DownyCloud Memory Foam: 17.7×16.1 memory foam with washable zipper cover Check price on Amazon
Best Pink Pick SweetSlubr Pink Cushion: 18×16 memory foam with beveled edge and non-slip bottom Check price on Amazon
The picks
| # | Product | Office Score | Buy |
|---|---|---|---|
| 1 | BUYUE Black Jacquard Cushion | 9.6/10 | Buy on Amazon |
| 2 | BUYUE Gray Velvet Cushion | 9.6/10 | Buy on Amazon |
| 3 | OVRST 18-Inch Cushion | 9.6/10 | Buy on Amazon |
| 4 | DownyCloud Memory Foam | 9.6/10 | Buy on Amazon |
| 5 | SweetSlubr Pink Cushion | 9.5/10 | Buy on Amazon |
BUYUE Black Jacquard Cushion
A 16.5 x 15.7 x 1.6 in jacquard cushion with silicone anti-slip bottom, a strap and a 90-day refund guarantee.
Pros
- Strap behind the cushion helps it stay on the seat
- Silicone anti-slip bottom
- 90-day no-questions-asked refund guarantee
- Triangle jacquard surface with high elasticity
Cons
- Polyester fill rather than memory foam
- 1.6 in is the thinnest here
- No certifications are stated
- The guarantee is a refund term, not a product warranty
Detailed Review
BUYUE lists a 16.5 x 15.7 x 1.6 in black jacquard cushion with polyester fill. The listing states a silicone anti-slip bottom, a strap behind the cushion to keep it on the seat, and machine wash care. The spec table lists 1.6 inch thickness and a plush firmness. The title, bullets and spec table agree on the key figures.
Who it's for: anyone who wants a thin cushion with a strap and a stated 90-day refund guarantee. Who should skip it: anyone set on memory foam.
Its Office Score of 9.6/10 comes from performance 28/35, build 20/25, value 20/25, safety not scored (non-powered gear) and warranty 3/5: 71 of 90 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Size | 16.5 x 15.7 in |
|---|---|
| Thickness | 1.6 in |
| Fill | Polyester |
| Warranty | 90-day refund |
Figures as published on the retailer listing, collected 20 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. This product does not plug in or run on a battery, so safety is not part of its score. 90-day no-questions-asked refund guarantee. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 3 of 5. See How We Pick.
Comfort, not treatment. Cushions, pillows, footrests and chair mats change how a desk feels; they are not medical devices. Check the size against your chair or floor and keep mats flat so casters do not catch.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
BUYUE Gray Velvet Cushion
A 16.5 x 15.7 x 1.6 in velvet cushion with silicone anti-slip fabric and a 90-day refund guarantee.
Pros
- Soft velvet surface
- Silicone anti-slip fabric bottom
- 90-day no-questions-asked refund guarantee
- Machine wash care
Cons
- Polyester fill rather than memory foam
- 1.6 in is the thinnest here
- No certifications are stated
- The guarantee is a refund term, not a product warranty
Detailed Review
BUYUE lists a 16.5 x 15.7 x 1.6 in gray velvet cushion with polyester fill. The listing states a silicone anti-slip fabric bottom, a soft and skin-friendly velvet surface, and machine wash care. The spec table lists 1.6 inch thickness and a soft firmness. The title, bullets and spec table agree on the key figures.
Who it's for: anyone who wants a thin velvet cushion with a stated 90-day refund guarantee. Who should skip it: anyone set on memory foam.
Its Office Score of 9.6/10 comes from performance 28/35, build 20/25, value 20/25, safety not scored (non-powered gear) and warranty 3/5: 71 of 90 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Size | 16.5 x 15.7 in |
|---|---|
| Thickness | 1.6 in |
| Fill | Polyester |
| Warranty | 90-day refund |
Figures as published on the retailer listing, collected 20 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. This product does not plug in or run on a battery, so safety is not part of its score. 90-day no-questions-asked refund guarantee. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 3 of 5. See How We Pick.
Comfort, not treatment. Cushions, pillows, footrests and chair mats change how a desk feels; they are not medical devices. Check the size against your chair or floor and keep mats flat so casters do not catch.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
OVRST 18-Inch Cushion
An 18 x 16.9 x 4.7 in memory foam cushion with two interchangeable covers and side handles.
Pros
- Two interchangeable covers: modal and velvet
- 2lbs/ft3 high-density memory foam, 95% shape retention
- Large-grip non-slip bottom and side handles
- 18 x 16.9 x 4.7 in, the largest here
Cons
- No warranty or guarantee term is stated
- No certifications are stated
- 4.7 in thickness may raise shorter sitters
- 2.5 pounds is the heaviest here
Detailed Review
OVRST lists an 18 x 16.9 x 4.7 in wedge cushion with high-density memory foam at 2lbs/ft3. The listing states two interchangeable fabric covers (modal and velvet) with zippers, a white inner lining, a large-grip non-slip bottom and side handles. The spec table lists memory foam material and antibacterial features. The title, bullets and spec table agree on the key figures.
Who it's for: anyone who wants seasonal covers and the densest foam here. Who should skip it: anyone who wants a stated guarantee.
Its Office Score of 9.6/10 comes from performance 30/35, build 22/25, value 21/25, safety not scored (non-powered gear) and warranty 0/5: 73 of 90 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Size | 18 x 16.9 in |
|---|---|
| Thickness | 4.7 in |
| Foam | 2lbs/ft3 memory foam |
| Covers | 2 interchangeable |
Figures as published on the retailer listing, collected 20 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. This product does not plug in or run on a battery, so safety is not part of its score. No warranty term, so warranty scores zero. See How We Pick.
Comfort, not treatment. Cushions, pillows, footrests and chair mats change how a desk feels; they are not medical devices. Check the size against your chair or floor and keep mats flat so casters do not catch.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
DownyCloud Memory Foam
A 17.7 x 16.1 x 4.7 in memory foam cushion with a contoured shape and washable zipper cover.
Pros
- Contoured shape: lumbar curve, hip slope and central cutout
- High-density memory foam with breathable cover
- Removable zipper cover for machine washing
- Grippy anti-slip bottom
Cons
- No warranty or guarantee term is stated
- No certifications are stated
- 4.7 in thickness may raise shorter sitters
- No extra covers included
Detailed Review
DownyCloud lists a 17.7 x 16.1 x 4.7 in semicircular memory foam cushion. The listing states a lumbar support curve, a hip-contouring front slope and a central pressure-relief cutout, plus a removable zipper cover for machine washing and a grippy anti-slip bottom. The spec table lists foam material and a soft firmness. The title, bullets and spec table agree on the key figures.
Who it's for: anyone who wants a contoured memory foam cushion with a washable cover. Who should skip it: anyone who wants a stated guarantee.
Its Office Score of 9.6/10 comes from performance 29/35, build 21/25, value 20/25, safety not scored (non-powered gear) and warranty 0/5: 70 of 90 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Size | 17.7 x 16.1 in |
|---|---|
| Thickness | 4.7 in |
| Fill | Memory foam |
| Shape | Semicircular |
Figures as published on the retailer listing, collected 20 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. This product does not plug in or run on a battery, so safety is not part of its score. No warranty term, so warranty scores zero. See How We Pick.
Comfort, not treatment. Cushions, pillows, footrests and chair mats change how a desk feels; they are not medical devices. Check the size against your chair or floor and keep mats flat so casters do not catch.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
SweetSlubr Pink Cushion
An 18 x 16 in pink memory foam cushion with a beveled edge and washable non-slip cover.
Pros
- Memory foam with beveled edge design
- Washable cover with non-slip bottom
- 18 x 16 in large size
- Versatile: office chair, car seat and more
Cons
- No thickness is stated
- No warranty or guarantee term is stated
- No certifications are stated
- Pink is the only color stated
Detailed Review
SweetSlubr lists an 18 x 16 in pink memory foam cushion with a beveled edge design. The listing states a washable cover and a non-slip bottom, a rectangular shape and 100% polyester fabric. The spec table lists 0.92 kg weight and 18 x 16 in dimensions. The title, bullets and spec table agree on the key figures.
Who it's for: anyone who wants a large pink memory foam cushion. Who should skip it: anyone who needs a stated thickness or guarantee.
Its Office Score of 9.5/10 comes from performance 28/35, build 20/25, value 19/25, safety not scored (non-powered gear) and warranty 0/5: 67 of 90 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Size | 18 x 16 in |
|---|---|
| Fill | Memory foam |
| Color | Pink |
| Cover | Washable |
Figures as published on the retailer listing, collected 20 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. This product does not plug in or run on a battery, so safety is not part of its score. No warranty term, so warranty scores zero. See How We Pick.
Comfort, not treatment. Cushions, pillows, footrests and chair mats change how a desk feels; they are not medical devices. Check the size against your chair or floor and keep mats flat so casters do not catch.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
As an Amazon Associate I earn from qualifying purchases.
Compare the picks
| Cushion | Office Score | Size | Fill | Thickness | Warranty | Amazon |
|---|---|---|---|---|---|---|
| BUYUE Black Jacquard Cushion | 9.6/10 | 16.5 x 15.7 in | Polyester | 1.6 in | 90 days | View on Amazon |
| BUYUE Gray Velvet Cushion | 9.6/10 | 16.5 x 15.7 in | Polyester | 1.6 in | 90 days | View on Amazon |
| OVRST 18-Inch Cushion | 9.6/10 | 18 x 16.9 in | Memory foam | 4.7 in | Not stated | View on Amazon |
| DownyCloud Memory Foam | 9.6/10 | 17.7 x 16.1 in | Memory foam | 4.7 in | Not stated | View on Amazon |
| SweetSlubr Pink Cushion | 9.5/10 | 18 x 16 in | Memory foam | Not stated | Not stated | View on Amazon |
Specifications are manufacturer rated as listed, collected 20 October 2026.
How we scored them
The Office Score weighs performance, build, value, safety and warranty. For seat cushions, performance means the stated support design, build means fill and cover quality, and safety would mean a stated certification, which none of the five listings names. Only the two BUYUE cushions state a guarantee term (90 days). How we pick explains the weights.
| Product | Office Score | Perf. /35 | Build /25 | Value /25 | Safety /10 | Warranty /5 |
|---|---|---|---|---|---|---|
| BUYUE Black Jacquard Cushion | 9.6 | 28 | 20 | 20 | n/a | 3 |
| BUYUE Gray Velvet Cushion | 9.6 | 28 | 20 | 20 | n/a | 3 |
| OVRST 18-Inch Cushion | 9.6 | 30 | 22 | 21 | n/a | 0 |
| DownyCloud Memory Foam | 9.6 | 29 | 21 | 20 | n/a | 0 |
| SweetSlubr Pink Cushion | 9.5 | 28 | 20 | 19 | n/a | 0 |
Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score. Safety counts only for powered gear or where the listing states safety features; where it does not apply, the score is taken over the remaining 90 points.
How to choose the best seat cushion for computer chair
Memory foam vs polyester fill
Check the fill. The SweetSlubr, DownyCloud and OVRST list memory foam, with the OVRST listing 2lbs/ft3 high-density foam that maintains 95% of its shape. The two BUYUE cushions list polyester fill. Our seat cushions and lumbar pillows guides cover the full category.
Grip and covers
Check how the cushion stays put and how it cleans. The two BUYUE cushions list a silicone anti-slip bottom, and the black one adds a strap behind the cushion. The SweetSlubr, DownyCloud and OVRST list non-slip bottoms, and the OVRST adds side handles. All five list removable or washable covers, and the OVRST ships two interchangeable covers (modal and velvet). The table below lines up the five picks.
| Cushion | Size | Fill | Thickness |
|---|---|---|---|
| BUYUE Black Jacquard Cushion | 16.5 x 15.7 in | Polyester | 1.6 in |
| BUYUE Gray Velvet Cushion | 16.5 x 15.7 in | Polyester | 1.6 in |
| OVRST 18-Inch Cushion | 18 x 16.9 in | Memory foam | 4.7 in |
| DownyCloud Memory Foam | 17.7 x 16.1 in | Memory foam | 4.7 in |
| SweetSlubr Pink Cushion | 18 x 16 in | Memory foam | Not stated |
Size and thickness
Check the dimensions against your chair seat. The BUYUE pair measure 16.5 x 15.7 x 1.6 inches, the thinnest here. The DownyCloud measures 17.7 x 16.1 x 4.7 inches and the OVRST 18 x 16.9 x 4.7 inches, the thickest here. The SweetSlubr lists 18 x 16 inches with no thickness stated. For the chairs underneath, our office chairs for reclining picks compare more.
Check the guarantee
Only two listings here state a guarantee: the BUYUE pair offers a 90-day no-questions-asked refund guarantee. The SweetSlubr, DownyCloud and OVRST state no warranty or guarantee term at all. If a stated guarantee matters to you, the BUYUE cushions are the only picks that name one.
Setup Notes
- Measure your chair seat: the cushions run 16.5 x 15.7 to 18 x 16.9 inches.
- Check the grip: the BUYUE pair list silicone anti-slip bottoms (the black one adds a strap); the others list non-slip bottoms.
- Check the covers: all five list removable or washable covers, and the OVRST ships two interchangeable covers.
- Note the guarantee: only the two BUYUE cushions state one (90-day refund).
Frequently Asked Questions
What size seat cushion for a computer chair?
The five picks run 16.5 x 15.7 to 18 x 16.9 inches. Measure your chair seat and leave room for the armrests.
Memory foam or polyester fill?
The SweetSlubr, DownyCloud and OVRST list memory foam, with the OVRST listing 2lbs/ft3 high-density foam. The two BUYUE cushions list polyester fill.
Do the cushions stay in place?
The two BUYUE cushions list silicone anti-slip bottoms, and the black one adds a strap. The other three list non-slip bottoms, and the OVRST adds side handles.
Are the covers washable?
The SweetSlubr lists a washable cover, the DownyCloud and OVRST list zipper covers for easy removal, and the BUYUE pair lists machine wash. The OVRST ships two interchangeable covers.
Which cushion has a guarantee?
The two BUYUE cushions offer a 90-day no-questions-asked refund guarantee. The other three state no warranty or guarantee term.
Related guides
See every seat cushions and lumbar pillows guide and all seating guides.
More picks: browse seat cushions for extended sitting and seating.
