Kolbs Extra Large Seat Cushion - Plush Velvet Memory Foam Comfort

In this review of the Kolbs Extra Large Seat Cushion the bottom line is simple: it is a roomy, comfortable memory foam pad best suited for anyone who needs extra cushioning and a modest lift for long periods of sitting. The reviewer found the X-large 19 in by 17 in footprint and 3 in height best for office chairs, car seats, or floor use where width and depth matter. The cushion's removable plush velvet cover and non-skid base make it practical, while the dual-layer foam construction provides a balance of pressure relief and support for everyday use.

Key Features

• Extra large footprint: The 19 in by 17 in surface gives more width and depth than standard pads so it accommodates bigger seats and spreads pressure over a larger area.
• Two-layer memory foam: A plush memory foam top layer cushions sensitive areas while a high-density medical grade core preserves support and prevents bottoming out.
• Plush velvet cover: The soft two-tone velvet cover adds a comfortable, stylish surface that can be removed and machine washed for easy care.
• Lifts seating height: At about 3 in tall the cushion provides a 2-3 in effective lift to improve posture and relieve tailbone pressure on long drives or desk work.
• Portable and stable: A built-in carry handle makes it easy to move between car and office, and the nonskid bottom keeps it firmly in place on most chairs.

Who It's For

This cushion is ideal for office workers, drivers on long commutes, and anyone seeking extra depth and width for better pressure distribution and coccyx relief. People recovering from surgery or dealing with sciatica, hemorrhoid discomfort, or general lower back and leg pain will find the lift and memory foam top layer helpful for reducing pressure during extended sitting.

Those who need a very firm medical device or extreme density support should look elsewhere, since some users report the top layer is plush rather than rock-solid. If you need a narrow or tailored fit for a special chair, the extra-large dimensions may be too wide.

Pros & Cons

Pros

• Generous size offers improved comfort across a wide seating surface for most chair types.
• Dual-layer construction combines plush pressure relief with a supportive core for extended use.
• Removable machine-washable velvet cover keeps the cushion clean and adds a soft feel.
• Carry handle and nonskid bottom make it portable and stable in cars or office chairs.

Cons

• Some users find the foam density softer than expected, so it may not suit those seeking very firm support.
• The 3 in height may be less than desired for users wanting a large lift or thicker orthopedic wedge.

Specifications

Brand	Kolbs
Size	Extra Large (19 in x 17 in x 3 in)
Cover material	Plush two-tone velvet, removable and machine washable
Foam construction	Memory foam top layer with medical grade high density core
Special features	Carry handle and nonskid bottom
Primary uses	Office chair, car seat, floor pillow, coccyx pain relief

Our Verdict

The Kolbs Extra Large Seat Cushion is a practical, well-sized memory foam pad that delivers noticeable comfort and a modest lift for daily sitting. It represents good value for people who want a plush top layer with supportive core construction and easy-care cover; choose it if you need more surface area and portability, but consider firmer medical options if you require very high density support.

Frequently Asked Questions

Is the cover washable?
The velvet cover is removable and machine washable for easy cleaning.

Will it stay in place on my chair?
The cushion has a nonskid bottom designed to keep it firmly in place on most office chairs and car seats.

How much lift does it give?
With a 3 in height the cushion provides an effective seating lift of about 2-3 in, useful for posture improvement and pressure relief.