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

In this review the Cushion Source Rounded Back Seat Cushion stands out as a durable, deep seating option for patios, porches, and sunrooms; it is best for anyone who wants a tailored look and long-lasting outdoor fabric without sacrificing plush support. The cushion's 5 in CumuPlus fill delivers noticeable depth and support while the Sunbrella Macaw fabric promises fade resistance and easy maintenance, making it a solid choice if you need a weather-ready cushion that still reads like indoor comfort.

Key Features

• Sunbrella Performance Fabric: Fade resistant and weather-ready material that keeps color vibrant on patios and porches.
• 5 in CumuPlus Fill: Deep seating comfort that cushions rockers, lounge chairs, and deep seating furniture for longer relaxation periods.
• Rounded Back Design: Curved back and box edge styling provide a tailored fit for chairs measuring roughly 19-21 in wide and 20-22 in deep.
• Hidden Zipper: Discreet closure that preserves clean lines while allowing the cover to be removed for care if needed.
• Proudly Made in the USA: Precision craftsmanship since 2004 that emphasizes build quality and consistent sizing.

Who It's For

This cushion is aimed at homeowners who use transitional indoor-outdoor spaces and want weather-resistant upholstery that still reads as comfortable indoor seating. It suits owners of deep seating chairs, loungers, and porch rockers who need a 5 in thick cushion that holds shape and color season after season.

It may be less suitable for buyers who prefer an ultra-soft, sinking plushness or who need a custom size outside the 19-21 in by 20-22 in fit range; those customers should look for softer fill options or bespoke sizing rather than this specific rounded-back model.

Pros & Cons

Pros

• Durable Sunbrella fabric keeps the cushion looking fresh in sun and rain.
• Generous 5 in CumuPlus fill provides firm, long-lasting support for deep seating.
• Rounded back and box edge styling create a neat, tailored appearance on compatible chairs.
• Hidden zipper and American manufacturing add to perceived quality and ease of care.

Cons

• Some buyers report the firmness is greater than expected, so it may feel too firm for those wanting softer cushioning.
• Fit is intended for a specific chair width and depth range, so exact measurements are important before purchase.

Specifications

Product type	Rounded back seat cushion
Dimensions	19.5 in x 20 in x 5 in deep
Fabric	Sunbrella Macaw performance fabric (fade resistant)
Fill	5 in CumuPlus fill
Design details	Curved back with box edge styling and hidden zipper
Suitable seat size	Fits chairs about 19-21 in wide and 20-22 in deep
Origin	Made in the USA

Our Verdict

The Cushion Source Rounded Back Seat Cushion is a practical, well-made option for anyone who wants a durable outdoor-capable cushion with substantial support. Its Sunbrella cover and 5 in CumuPlus fill deliver long-term value for patios and sunrooms, though buyers seeking a softer sink may want a different fill. Overall it is good value for those who prioritize fade resistance, fit, and build quality.

Frequently Asked Questions

Will this cushion hold up outdoors?
The Sunbrella performance fabric is fade resistant and designed for outdoor exposure, so it performs well on covered patios and porches.

Is the cover removable for cleaning?
Yes, the cushion includes a hidden zipper so the cover can be removed for spot cleaning or care according to Sunbrella instructions.

What chairs will this fit?
It is made for deep seating chairs approximately 19-21 in wide and 20-22 in deep, including rockers and lounge pieces with rounded backs.