AUVON Donut Memory Foam Seat Cushion, 18 × 16 × 4.3 in

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Product guide

AUVON Donut Memory Foam Seat Cushion, 18 × 16 × 4.3 in

The AUVON donut seat cushion uses a hollow center and U-shaped tailbone cutout, with memory foam intended to ease pressure while sitting. Its 4.3-inch thickness, removable washable cover and anti-slip base suit buyers seeking a portable cushion for a chair, car seat or wheelchair, though customers report mixed experiences with how securely it stays in place.

At a glance

Hollow center and U-shaped cutout are designed to reduce pressure around the tailbone and sensitive areas.
The listing describes a sloped front intended to reduce thigh pressure during prolonged sitting.
Removable cover is described as washable, with a honeycomb mesh fabric and silicone-particle anti-slip base.
Listed for office chairs, car seats, student chairs and wheelchairs.

Price

$23.92Save 20%

Reference price: ~~$29.99~~

Price checked: Nov 12, 2026

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Pros and cons

Pros

The 18 × 16-inch footprint and 4.3-inch height provide a substantial cushion for supported sitting applications.
Memory foam, a removable washable cover and a non-slip base combine cushioning with easier cover care.
The hollow-center design may suit people looking to reduce direct contact around the coccyx or other sensitive areas.

Technical specifications

12 specifications

Identity
Brand	AUVON
Model	seat cushions

Materials and protection
Material listed	Core: 100% Polyurethane, Cover: 100% Polyester Fiber
Fill material	Premium Memory Foam
Cover features	Anti-Slip, Premium Memory Foam, Washable & Removable Cover
Color	Black

Size and feel
Dimensions	18"L x 16"W x 4.3"H
Firmness	Medium Firm
Number of pieces	1

Design and intended use
Target body part	Buttocks
Recommended uses	Coccyx, Postpartum Pregnancy & After Surgery Sitting Relief, Prostate, Tailbone
Age range	All

What to know before buying

Listing details to confirm

The listing describes pressure relief for hemorrhoids, tailbone discomfort and other conditions, but these are product claims rather than established medical outcomes. The cushion is medium firm, and customer feedback is mixed on thickness and whether it stays in place, so fit and stability may vary by seat.

Who is it for?

A good fit for

People seeking a memory foam donut-style cushion for an office chair, car seat or wheelchair.
Buyers who want a removable washable cover and a cutout intended to reduce pressure on sensitive areas.
People looking for extra seat height and a medium-firm cushion for longer sitting.

Less suited to

Anyone who needs a guaranteed medical treatment or a confirmed fit for a particular chair, vehicle or wheelchair.
Buyers who require assured stability on every seating surface.

AUVON Donut Memory Foam Seat Cushion, 18 × 16 × 4.3 in · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 652 ratings

5 stars72%72%
4 stars12%12%
3 stars6%6%
2 stars5%5%
1 star5%5%

Customer feedback highlights comfort and reported help with longer sitting, back or tailbone discomfort, and post-surgery recovery. That feedback may matter to people considering the listed medium-firm memory foam and hollow-center shape, but it does not establish a medical result. Customers disagree about whether the cushion stays in place, and experiences with thickness are also mixed.

Positive themes

Customers describe the cushion as comfortable and report support for longer sitting.
Feedback mentions perceived help with back or tailbone discomfort and post-surgery recovery.

Mixed feedback

Customers disagree about whether it stays in place on their chairs.
Experiences with thickness are mixed.

Frequently asked questions

What are the cushion's dimensions?

The listing gives dimensions of 18"L x 16"W x 4.3"H.

Can the cover be removed and washed?

Yes. The listed features describe a removable, washable cover.

What seats is it intended for?

The listing names office chairs, car seats, student chairs and wheelchairs. It does not provide seat-fit measurements, so check the dimensions against your seating surface.

Does the cushion stay firmly in place?

It has an anti-slip base, but customer feedback disagrees on stability. The listed feature does not guarantee that it will stay put on every chair.