Rounded Back Seat Cushion 19.5in x 20in x 5in - Deep Outdoor Comfort

In this review of the Rounded Back Seat Cushion 19.5in x 20in x 5in the bottom line is simple: this cushion is for anyone who wants deep, weather-ready comfort on a porch, patio, or sunroom without fuss. The cushion's most compelling attribute is its combination of a 5in CumuPlus fill and durable Sunbrella performance fabric, which together deliver long-lasting support and colorfast outdoor performance. It is a thoughtfully made product with a hidden zipper and rounded back that fits many deep seating chairs and offers a near-custom look for both traditional and modern settings.

Key Features

• Sunbrella performance fabric: Resists fading and holds vibrant color even with regular outdoor exposure, so cushions stay looking newer longer.
• 5in CumuPlus fill: Provides plush deep seating comfort and steady support for extended lounging without immediate flattening.
• Rounded back design: The curved back and box edge styling give a tailored fit for chairs measuring about 19in-21in wide and 20in-22in deep, improving appearance and fit.
• Hidden zipper: A discreet closure keeps the look clean and allows the cover to be removed for professional cleaning or replacement if needed.
• Indoor and outdoor use: Built to perform on patios, porches, and sunrooms, offering versatility between outdoor durability and indoor comfort.
• Proudly made in the USA: Crafted with attention to detail and consistent construction since 2004 for reliable build quality.

Who It's For

The Rounded Back Seat Cushion is best for homeowners or renters with deep seating chairs, rockers, or lounge furniture who want a durable, colorfast cushion for outdoor living spaces and covered patios. It suits people who value a tailored look and want a cushion that holds shape and supports longer relaxation sessions.

It may be less suitable for shoppers who need a very soft, sink-in plushness immediately, since some customers note a firmer feel. Also, those with chairs outside the stated width and depth range should verify measurements for a proper fit before buying.

Pros & Cons

Pros

• High-quality Sunbrella fabric keeps colors vibrant and resists weather-related fading.
• Generous 5in CumuPlus fill offers sustained deep seating comfort and support.
• Rounded back and box edge styling create a neat, tailored appearance on compatible chairs.
• Proudly made in the USA with a hidden zipper for a clean finish and cover removal.

Cons

• Some customers find the cushion firmer than expected, so it may not satisfy those seeking a very soft seat.
• Fit depends on chair dimensions; chairs outside 19in-21in wide and 20in-22in deep may not get the intended tailored look.

Specifications

Product type	Rounded back seat cushion
Dimensions	19.5in x 20in x 5in
Fill	5in CumuPlus fill
Fabric	Sunbrella performance fabric (fade resistant)
Design	Rounded back with box edge styling
Care features	Hidden zipper for cover removal
Origin	Made in the USA

Our Verdict

For outdoor and indoor sunroom seating that needs durability and a refined look, this rounded back cushion is a strong value. The combination of Sunbrella fabric and 5in CumuPlus fill gives reliable colorfastness and lasting support, making it a sensible pick for deep seating chairs if you prefer a structured, supportive cushion rather than an ultra-soft sink-in feel.

Frequently Asked Questions

Will this cushion work outdoors year-round?
It is made with Sunbrella performance fabric to resist fading and typical weather exposure, but best longevity comes from covering or storing cushions during harsh winter weather.

Does the cover come off for cleaning?
Yes, the cushion has a hidden zipper so the cover can be removed for professional cleaning or replacement.

What chair sizes does it fit?
The rounded back design fits chairs approximately 19in-21in wide and 20in-22in deep for a tailored appearance.