Cushion Source Rounded Back Seat Cushion 19.5 x 20 x 5 in - Deep

In this review the Cushion Source Rounded Back Seat Cushion earns its place for anyone who needs a durable, deep-seating pad for covered patios, porches, or indoor sunrooms. The single biggest reason to buy is the combination of 5 in of CumuPlus fill with resilient Sunbrella performance fabric, which delivers noticeable comfort and long-term color retention in outdoor conditions. The cushion is tailored for chairs roughly 19-21 in wide and 20-22 in deep and shows thoughtful details like a hidden zipper and box edge styling that give a finished, custom look.

Key Features

• Sunbrella Performance Fabric: Provides fade resistance and weather-ready durability so the cushion keeps vibrant color on patios or in sunrooms.
• 5 in CumuPlus Fill: Offers deep seating comfort with plush support that holds its shape for lounge chairs and rockers.
• Rounded Back Design: The curved back and box edge styling deliver a tailored fit for a variety of chair shapes while improving overall aesthetics.
• Hidden Zipper: Conceals the closure for a clean look and makes the cover serviceable without disrupting the cushion's lines.
• Made in the USA: Manufactured domestically since 2004, reflecting consistent craftsmanship and build quality.

Who It's For

This cushion is best for homeowners who want a purpose-built seat pad for outdoor living spaces that also works inside a sunroom. It suits deep seating chairs, lounge furniture, and rockers that fall within the listed width and depth ranges and for buyers who prioritize long-lasting fabric performance.

It is less ideal for someone seeking an ultra-soft, low-firmness cushion or an exact fit for nonstandard chair dimensions; a softer down-style fill or a custom-size option may be better for those needs.

Pros & Cons

Pros

• Durable Sunbrella fabric maintains color and resists weathering for outdoor use.
• Thick 5 in CumuPlus fill provides substantial deep-seating support and comfort.
• Rounded back and box edge styling create a tailored appearance on a range of chairs.
• Hidden zipper and USA manufacturing add to the quality and finish.

Cons

• Some users report the cushion feels firmer than expected, so it may not suit those who prefer very soft padding.
• Fit is intended for chairs around 19-21 in by 20-22 in, so it may not work on significantly smaller or larger frames.

Specifications

Our Verdict

The Cushion Source Rounded Back Seat Cushion is a smart choice for anyone needing a durable, attractive cushion for deep seating outdoor or sunroom furniture. Its 5 in CumuPlus fill and Sunbrella fabric balance comfort and longevity, and while it can feel firm to some, the build quality and tailored look make it a good value for standard-sized deep chairs.

Frequently Asked Questions

Is this cushion suitable for outdoor use?
Yes, the Sunbrella performance fabric is fade resistant and designed to withstand outdoor conditions on covered patios and porches.

What chair sizes will it fit?
The rounded back design is intended for chairs about 19-21 in wide and 20-22 in deep for a proper fit.

Can the cover be removed for cleaning?
Yes, a hidden zipper allows the cover to be removed for cleaning or replacement while keeping a clean finished appearance.