Description
The Convoluted Donut Seat Cushion 18 Inch pairs the donut ring's center opening with a convoluted egg-crate foam surface that spreads contact pressure across peaks and valleys. At 18 inches it is the larger ring, suiting bigger chairs and bigger sitters who need the tailbone fully unloaded.
- Egg-Crate Surface – Convoluted foam peaks spread pressure and let air move – less heat and less focused load than flat foam
- Center Opening – The hole in the middle unloads the tailbone and perineal area – sitting stops pressing on the sore spot
- 18 Inch Ring – The large format fits wide chairs and wheelchairs – full ring support for larger adults
- Removable Washable Cover – The cover comes off for washing – a cushion used daily can be kept genuinely clean
Two Relief Ideas in One Ring: Opening Plus Egg-Crate
The donut shape handles the center, suspending the tailbone over an opening so nothing presses on it. The convoluted surface handles everything else: the egg-crate peaks and valleys distribute the weight of the thighs and hips over a varied surface, which reduces peak pressure and lets air circulate at the contact area during long sits.
At 18 inches this is the generous size in the manufacturer's donut line, made for larger adults and wider seats where a 16 inch ring would crowd the hips. The foam ring carries a removable, washable cover, and the cushion serves the same recovery roles as the classic donut: tailbone pain, hemorrhoids, and post-surgical sitting.
Features and Benefits
Relief Design
- Convoluted Foam: Egg-crate surface spreads pressure and improves air flow at the contact area
- Center Opening: Opening in the center relieves pressure on the tail bone
- Recovery Uses: Facilitates healing of hemorrhoids and post-surgical sitting comfort
Care
- Removable Cover: Removable washable cover, with extra covers available separately
Product Specifications
Dimensions and Construction
- Diameter: 18 inches
- Construction: Convoluted foam ring with removable cover
- Shape: Round donut with center opening
Packaging
- Packaging: Sold individually, one cushion per package
Browse the full Seating Solutions range, or shop everything from Alex Orthopedic.
Why Convoluted Foam Improves the Classic Donut
A flat foam ring concentrates pressure at its inner and outer edges. The egg-crate surface breaks the contact into peaks that share the load, so the ring itself is gentler while the opening keeps the tailbone completely out of the equation.
- Pressure, Distributed – Convolutions spread the sitting load across many peaks – fewer hot spots during long sits
- Zero Contact at the Center – The tailbone floats over the opening – no cushion surface presses the injury at all
- Room to Sit – The 18 inch ring fits larger bodies and wider seats – support sized for the sitter, not the average
Frequently Asked Questions
What does convoluted mean here?
The foam surface is molded into egg-crate peaks and valleys. That shape spreads pressure and allows more air movement than flat foam.
Who uses a donut cushion?
It is used for tailbone pain, hemorrhoid relief, and sitting after perineal or rectal surgery. The center opening keeps pressure off the affected area.
What size is this cushion?
This listing is the 18 inch ring, the larger format. A 16 inch flat-surface version is listed separately.
Can the cover be washed?
Yes, the cover is removable and washable. The manufacturer also offers extra covers separately.
Will it fit a wheelchair?
An 18 inch ring suits standard and wider wheelchair seats. Measure the seat if the chair is narrow.
