ProtoArc Extra Large Seat Cushions for Office Chairs, Ergonomic Memory Foam Seat Cushion for Home, Extra Cover, Car Seat Cushions for Driving, Pressure Relief Pad for Sciatica – Black
Original price was: $64.99.$39.99Current price is: $39.99.









Price: $64.99 - $39.99
(as of Mar 15, 2026 17:34:11 UTC – Details)
Product description
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. SC Butterfly XL Seat Cushion Merchant Video
Upgrade your office chair and enhance some of that tailbone comfort with an ergonomic XL seat cushion
Scientifically Divided Seat Cushion, Precise Pressure Relief
The Perfect Companion for All Your Seating Needs
Whether you’re working tirelessly at your office desk, embarking on a long road trip, relaxing at home, or enjoying the great outdoors, ProtoArc SC Butterfly XL seat cushion offers exceptional comfort and support wherever you go
Experience Game-Changing Comfort with Seat Cushions
Available in 3 colors including classic black, sleek dark gray, and mint green, ProtoArc XL seat cushion is not just a functional addition to your workspace but a stylish accent that complements any decor
ProtoArc Seat Cushion & Lumbar Support
Dimensions
20 x 16.9 x 4.3 inches, Extra Large size
Dimensions
18.3 x 15.7 x 4.3 inches, Standard size
Dimensions
18.1 x 17.7 x 5.5 inches, Standard size
Recommended Use
Truck drivers, overweight office workers, wheelchair users
Recommended Use
Office workers, students, home workers who sit for extended periods of time
Recommended Use
Office workers, students, home workers who sit for extended periods of time
Recommended Chair Type
Perfect for truck/bus driver’s seat, large office chair, extra-wide wheelchair
Recommended Chair Type
Ideal for most office chairs, home chairs, and car seats
Recommended Chair Type
Ideal for most office chairs, home chairs, and car seats
Best for
Users who prefer a larger seating area and extra cushioning
Best for
Users who need a standard, comfortable cushion for everyday use
Best for
Users who need a standard, comfortable lumbar support for everyday use
Target Audience
Individuals (exceeding 200 lbs) who prefer a larger seating surface
Target Audience
Individuals with average body size (less than 200 pounds)
Target Audience
Individuals with average body size
Certified Sustainability, Trusted Excellence 
Extra Large Seat Cushion: Ergonomically designed to relieve sciatica, coccyx, and lower back discomfort, ProtoArc extra-large memory foam cushion(20″L x 16.9″W x 4.3″H) offers exceptional support for all-day comfort and improved posture
Solution for Target People: Our upgraded extra-large seat cushion is tailored to meet the needs of individuals, providing a spacious and supportive seating solution designed to accommodate for weights exceeding 200 lbs with superior comfort and durability
Targeted Pressure Relief: The split design of our cushion targets pressure points on hips, thighs, and coccyx, alleviating lower back and hip pressure while encouraging proper posture. Experience relief and comfort during extended periods of sitting
Tailored Support for Office Comfort: Transform your desk chair into a supportive haven with our scientifically designed cushion, promoting optimal spine alignment and reducing discomfort during long work hours. Enhance productivity and reduce fatigue
Firm Support and Convenience Combined: Our 4.3″ thick memory foam cushion offers lasting firmness and support, enhanced with extra-dense bamboo charcoal-infused memory foam for freshness. The built-in handle, breathable cover with zipper closure for easy washing, and non-slip bottom ensure convenience and stability
Extra Cover for Easy Clean: Enjoy hassle-free maintenance with the included extra cover, ensuring cleanliness for your office, home or car seat cushion. Ideal for desk chairs, kitchen chairs, ourdoor chairs, wheelchairs and recliner chairs, this feature enhances comfort
Tips: 1. It may take 1-2 weeks to adjust to the cushion’s shape for the first time. Many find relief from back and hip pressure while improving posture. 2.The cushion comes vacuum sealed so you will need to let it expand for an hour or two before first use
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