ProtoArc Seat Cushion, Office Chair Cushion for Sciatica, Coccyx Cushion, Ergonomic Memory Foam Seat Cushion for Car, Home, Pressure Relief Pad for Hip, Tailbone, All Day Comfort – Black
Original price was: $32.99.$23.72Current price is: $23.72.
Price: $32.99 - $23.72
(as of Jun 25, 2026 07:15:33 UTC – Details)
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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. ProtoArc SC Butterfly Seat Cushion
Recommended Body Weight: For optimal comfort, we recommend ProtoArc SC Butterfly seat cushion for individuals weighing less than 200 pounds. For weights exceeding 200 lbs we recommend the upgraded version SC Butterfly XL Seat Cushion.
Trusted by The Guardian – Engineered for Real Relief 
We’re proud to share that the SC Butterfly Seat Cushion has been recognized and recommended by The Guardian, a globally respected media authority known for rigorous product testing and honest health advice. You’re choosing a product backed by independent experts
Why choose ProtoArc seat cushions?
The ProtoArc SC Butterfly Seat Cushion is designed to enhance comfort and support during long periods of sitting. Its ergonomic U-shaped design promotes proper posture and reduces pressure on the lower back, buttocks, and tailbone
Unveiling a Seat Cushion Designed with Meticulous Care
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 seat cushion offers exceptional comfort and support wherever you go
ProtoArc Seat Cushion & Lumbar Support
Dimensions
18.3 x 15.7 x 4.3 inches, Standard size
Dimensions
20 x 16.9 x 4.3 inches, Extra Large size
Dimensions
18.1 x 17.7 x 5.5 inches, Standard size
Recommended Use
Office workers, students, home workers who sit for extended periods of time
Recommended Use
Truck drivers, overweight office workers, wheelchair users
Recommended Use
Office workers, students, home workers who sit for extended periods of time
Recommended Chair Type
Ideal for most office chairs, home chairs, and car seats
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
Best for
Users who need a standard, comfortable cushion for everyday use
Best for
Users who prefer a larger seating area and extra cushioning
Best for
Users who need a standard, comfortable lumbar support for everyday use
Target Audience
Individuals with average body size (less than 200 pounds)
Target Audience
Individuals (exceeding 200 lbs) who prefer a larger seating surface
Target Audience
Individuals with average body size
Certified Sustainability, Trusted Excellence 
Trusted by The Guardian: As featured and recommended by The Guardian – a trusted voice in health and wellness. The SC Butterfly isn’t just another foam cushion. It’s scientifically designed to relieve tailbone pain, improve sitting posture, and reduce pressure on your lower back
Innovative U-Shape Design: Unique tailbone cut-out for pressure relief, even weight distribution, and raised sides for hip support. Pre-shaped foam molds to your body for exceptional comfort and support. Upgrade to optimal comfort with our pressure relief cushion (18″L x 16″W x 4″H) and transform your sitting experience today. Note: For optimal comfort, we recommend this seat cushion for individuals weighing less than 200 pounds. For weights exceeding 200 lbs we recommend the upgraded version SC Butterfly XL
Pressure Relief Seat Cushion: Split design targets pressure points on hips, thighs, coccyx for relief from lower back, hip discomfort, promoting proper posture. Ideal for long hours seated, offers relief from back and hip
Thick Cushion Pad: 4.3″ thick memory foam remains firm and supportive without going flat. The extra-dense bamboo charcoal-infused memory foam for freshness. Provides all-day sitting comfort
Ease Of Use: Built-in handle to make it easy to carry. Breathable cover with zipper closure for easy machine washing. Non-slip bottom ensures grip, especially on leather seats, for secure placement. Removable cover maintains freshness, while the non-slip feature enhances stability
Take Comfort Anywhere: ProtoArc seat cushion relieves lower back and hip discomfort, perfect for road trips, exercise, gaming. Standard size fits all body shapes, suitable for car seats, office chairs, wheelchairs, ensuring superior support and comfort anytime, anywhere
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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