Hero image 0 of FOMI Extra Wide and Thick Firm Coccyx Seat Cushion | 20” x 16” x 3.5” | Large Black Orthopedic Memory Foam Pad for Car or Truck Seat, Office Chair, Wheelchair | Back Pain Relief, 0 of 5
FOMI Extra Wide and Thick Firm Coccyx Seat Cushion | 20” x 16” x 3.5” | Large Black Orthopedic Memory Foam Pad for Car or Truck Seat, Office Chair, Wheelchair | Back Pain Relief
Key item features
- UNIQUE CUT-OUT DESIGN: This firm, high density memory foam cushion reduces pressure on your spine, tailbone, and lumbar discs. It ensures your tailbone doesn't touch the sitting surface, preventing discomfort or soreness.
- RELIEVES PAINFUL PRESSURE POINTS: Provides excellent back support and relieves the side effects resulting from pressing on the lower tailbone area. Getting rid of this pressure helps relieve hip and back pain, pregnancy related pain, herniated discs, sciatica, an injured tailbone, pressure sores, and numbness.
- FIRM, HIGH DENSITY MEMORY FOAM: Heavy Duty Thicker Memory Foam to Support Heavier Users. (Size - 18" x 16" x 3.5"). High density prevents cushion from flattening.
- CURVED SURFACE PROVIDES SUPPORT FOR BUTTOCKS, HIPS, AND THIGHS: Ergonomic design gently cradles your buttocks and the back of your upper thighs with its curved surface, evenly distributing weight and promoting proper posture and spinal alignment. Perfect for Office, Car, Kitchen, or Dining Room Chairs.
- WASHABLE, BREATHABLE VELOUR COVER WITH BUILT-IN HANDLES AND NON-SLIP BOTTOM: The high quality cover made with tiny holes to improve circulation and prevent the buildup of moisture or sweat, making it an ideal choice for prolonged use. Simply unzip the removable cover and place it in the washing machine or hand wash it for a fresh and clean sitting. Non-slip bottom keeps your cushion in place. Built-in handles make it easy to bring it with you wherever you go.
Specs
- Seat width20 in
- Fill materialMemory Foam
- Seat cushion thickness3.5 in
- ShapeRectangle
- Seat dimensions16 in
- ColorWide Cushion Black
Price when purchased online
Not Available
How do you want your item?
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About this item
Product details
Product Features:
- High Quality Fabric - Good absorption, firm and comfortable, safe and not toxic.
- Memory Foam has a very high tensile strength and is extremely durable
- Features a specially-positioned U-shaped cut-out that gently suspends your tailbone to relieve pressure.
- Unique shape will relieve pressure on your back and hips while providing a comfortable place to sit for long periods.
- Assists in the treatment of sciatica, pressure ulcers, injured tailbone and more
- Fits most autos, trucks or SUVs, even airline and train seats.
- Suitable for home and office chairs.
- Removable zipper cover
- Built in handle on the cover makes it easy to carry
More Reasons Why You Need This Product:
* U-shaped Empty Slot - The back of the spine away from the oppression of seat, alleviate the pressure of the tailbone.
* Ergonomic Coccyx Design - Relieves painful pressure on your tailbone, Encourages a good spine position.
* Natural Cervical Curve - Natural groove curve design, to promote blood circulation of legs.
* High and Low Design - Contoured molded seat cushion that evenly distributes body weight.
The FoMI Memory Foam Seat Cushion adds comfort to a chair, bench, car, plane, floor, or wheelchair. It reduces pressure on the tailbone while sitting and promotes healthy posture/spine alignment. The cushion will help prevent pressure ulcers. Most importantly, the cushions high density firm foam will not flatten out when you sit on it like other cushions. It was designed for lasting comfort and optimal support over long periods of time. The cover is machine washable and can be removed using the zipper for easy cleaning.
- UNIQUE CUT-OUT DESIGN: This firm, high density memory foam cushion reduces pressure on your spine, tailbone, and lumbar discs. It ensures your tailbone doesn't touch the sitting surface, preventing discomfort or soreness.
- RELIEVES PAINFUL PRESSURE POINTS: Provides excellent back support and relieves the side effects resulting from pressing on the lower tailbone area. Getting rid of this pressure helps relieve hip and back pain, pregnancy related pain, herniated discs, sciatica, an injured tailbone, pressure sores, and numbness.
- FIRM, HIGH DENSITY MEMORY FOAM: Heavy Duty Thicker Memory Foam to Support Heavier Users. (Size - 18" x 16" x 3.5"). High density prevents cushion from flattening.
- CURVED SURFACE PROVIDES SUPPORT FOR BUTTOCKS, HIPS, AND THIGHS: Ergonomic design gently cradles your buttocks and the back of your upper thighs with its curved surface, evenly distributing weight and promoting proper posture and spinal alignment. Perfect for Office, Car, Kitchen, or Dining Room Chairs.
- WASHABLE, BREATHABLE VELOUR COVER WITH BUILT-IN HANDLES AND NON-SLIP BOTTOM: The high quality cover made with tiny holes to improve circulation and prevent the buildup of moisture or sweat, making it an ideal choice for prolonged use. Simply unzip the removable cover and place it in the washing machine or hand wash it for a fresh and clean sitting. Non-slip bottom keeps your cushion in place. Built-in handles make it easy to bring it with you wherever you go.
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.
Specifications
Wheelchair cushion type
Orthopedic Cushions, Positioning Cushions, Pressure Cushions
Seat width
20 in
Fill material
Memory Foam
Seat cushion thickness
3.5 in
Indications
Health Concern
Arthritis & Joint Pain Body Aches & Pains Bone & Joint Health Disability Sciatica
Directions
Fabric Care Instructions
machine washable
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Showing 1-3 of 18 reviews
Aug 14, 2025
steven
5 out of 5 stars review
Verified Purchase
No bum for your Bumm!
Some years ago, I purchased a cushion that did a great job protecting my vanishing tush from the insults of hard metal folding chairs. It was glorious. One day, I left that cushion somewhere, never to be found again. I ordered the exact same cushion from the same supplier. What arrived was a worthless imitation of the original. I complained and got my money back, but I was still without a valued friend. The solution? This FOMI cushion. Firm and protective, this cushion is even better than the lost friend it replaces. It is very wide and may not fit all chairs. If I purchase another, which I might, I'd like one 2-3 narrower.
Incentivized Review
Helpful?3BI63QZSBTMB15818750726
Jan 5, 2026
Charles
Top Reviewer
5 out of 5 stars review
Verified Purchase
Exceeded expectations!
Actually, this exceeds my expectations. I bought a FOMI donut pillow years ago, and wound up buying one for my friend, so I was well aware of the quality of their products. I needed something to fill a failing desk chair seat and this size, as large %26 thick as it is, works perfectly. Very glad I discovered their products and highly reccoment all of them, but this one really rocks! Thank you!
Helpful?3BI63QZSBTMB15818750726
Jan 7, 2026
FRANK
Top Reviewer
5 out of 5 stars review
Verified Purchase
Nice cushion
The only thing to remember is that even if you had a pillow, when you sit on it for any length of time, it becomes more firm under you, the longer you sit on it. And this is true with this cushion as well, no matter how good it is, that is still true.
Helpful?3BI63QZSBTMB15818750726
