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  • Wondergel UP-001 The Ultimate Purple Seat Cushion
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Wondergel UP-001 The Ultimate Purple Seat Cushion

4.4 out of 5 stars 3,024 ratings
To see product details, add this item to your cart. You can always remove it later.
Brand Purple
Special feature Washable
Colour Purple
Size Ultimate
Fill material Gel Memory Foam
Shape Rectangular
Age range (description) Adult
Material Foam
Item firmness description Soft
Product care instructions Machine Wash

About this item

  • The Wondergel cushions are extra wide, so even if you have a larger bottom, you'll remain comfortable
  • Amazingly comfortable pressure relief
  • Therapeutic support
  • Two layers for maximum comfort
  • Pelvic contour for extra relief
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Product Description

everywhere purple seat cushion purple seat cushion ultimate kayak cushion seat waterproof
Dual Support
Ultimate seat Cushion

lumbar cushion for office chair gel seat cushion for office chair gel seat cushion for car driver
Best For:
  • Hard chairs
  • Soft chairs, couch, sofa
  • Computer chairs
  • Trucking
  • Extended sitting sessions
  • Long sit time (8+ hours)

The Purple Ultimate Seat Cushion

Product Information:

Longer, wider, and taller than any other Purple Cushion, the Ultimate Cushion fits a variety of fannies and seats, providing maximum comfort for all, especially when sitting for hours on end. Our seat cushion is made of Hyper-Elastic Polymer that is not only durable, but also gives the exact comfort your tush needs. It's made to be extra thick and soft with a grid designed for optimum pressure relief and comfort. Also, integrated, free-flowing air ducts maintain a neutral temperature.

  • Seat cushion is made of Hyper-Elastic Polymer
  • Helps alleviate leg and back pain
  • Adjusts to any individual's body shape or weight
  • Durable elastic gel consistency
  • Stays cool while in use
  • Comes with a cover with carrying handles
Comfort

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Sit comfy longer without your tailbone or wallet causing discomfort. The Purple Grid is engineered to relax under pressure while evenly supporting your body.

office chair lumbar support cushion outdoor seat cushion 20x20 pressure relief seat cushion

You don’t have to sit sweaty with hundreds of open airways that keep the Purple Grid temperature-neutral, even after sitting for long periods of time.

seat cushion pillow for office chair shower seat cushion stadium seat cushion thick seat cushion

Your investment won’t bottom out. The Purple Grid is engineered with ultra-durable material.

Totable
Ultimate Seat Cushion
Double Seat Cushion
Royal Seat Cushion
Simply Seat Cushion
Portable Seat Cushion
Buying Options
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Customer Reviews
4.4 out of 5 stars 3,024
4.4 out of 5 stars 2,018
4.4 out of 5 stars 4,002
4.4 out of 5 stars 2,259
4.4 out of 5 stars 1,606
Designed For Gaming Office Office Driving Travel
Chair Type Hard or Soft Soft Hard Hard or Soft Soft
For 200+ lbs ✓ no data ✓ ✓ no data
Extended Sitting (6-8+ Hours) ✓ ✓ ✓ no data no data
Cushion Firmness Firm Soft Firm Medium Soft
Size 21.75 x 18 x 2.5 18 x 16 x 2 17.5 x 15.75 x 2 17.5 x 15.75 x 1.25 15 x 13 x 1
Weight 7.3 lbs 5 lbs 6 lbs 4 lbs 2.75 lbs

Product information

Technical Details

Manufacturer ‎CB2ZE
Brand ‎Purple
Model ‎UP-001
Product Dimensions ‎45.72 x 55.88 x 6.35 cm; 1.13 kg
Item model number ‎UP-001
Is discontinued by manufacturer ‎No
Manufacturer part number ‎UP-001
Special features ‎Washable
Item Weight ‎1.13 kg

Additional Information

ASIN B01CKMP21W
Customer Reviews
4.4 out of 5 stars 3,024 ratings

4.4 out of 5 stars
鶹 Rank
Date First Available June 17 2016

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Wondergel UP-001 The Ultimate Purple Seat Cushion

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Customer reviews

4.4 out of 5 stars
3,024 global ratings

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Top reviews from Canada

  • kyle
    1.0 out of 5 stars They charge 3 times more than what the product is wortg
    Reviewed in Canada on May 31, 2023
    308$ for cushion that sells for 120 on purples website real classy
    5 people found this helpful
    Helpful
     Report
  • Kevin Mighton
    5.0 out of 5 stars Purple Cushion
    Reviewed in Canada on January 11, 2023
    Verified Purchase
    Work well, but the cover seems a little cheap.
    Helpful
     Report

Top reviews from other countries

  • Aung
    5.0 out of 5 stars Extremely Happy
    Reviewed in Australia on May 23, 2024
    Verified Purchase
    I've had long-term sit bone pain along with back pain. I tried a lot of seat cushions, but none gave me satisfactory relief. Finally, I found the Purple Ultimate Seat Cushion and decided to give it a try. As soon as I put it on my office chair, I felt relief right away. It's an amazing product! I can sit on it all day without any butt pain. There are no pressure points on my bottom, and it really distributes the pressure, alleviating my chronic sit bone pain. Even though my ErgoTune Supreme Ergonomic office chair provides great back support, its seat is a bit hard. This cushion has really helped relieve my sit bone pain. I'm extremely happy with my new Purple Ultimate Seat Cushion—it's the best seat cushion I've ever used.
    Customer image
    Aung
    5.0 out of 5 stars
    Extremely Happy

    Reviewed in Australia on May 23, 2024
    I've had long-term sit bone pain along with back pain. I tried a lot of seat cushions, but none gave me satisfactory relief. Finally, I found the Purple Ultimate Seat Cushion and decided to give it a try. As soon as I put it on my office chair, I felt relief right away. It's an amazing product! I can sit on it all day without any butt pain. There are no pressure points on my bottom, and it really distributes the pressure, alleviating my chronic sit bone pain. Even though my ErgoTune Supreme Ergonomic office chair provides great back support, its seat is a bit hard. This cushion has really helped relieve my sit bone pain. I'm extremely happy with my new Purple Ultimate Seat Cushion—it's the best seat cushion I've ever used.
    Images in this review
    Customer imageCustomer image
    Report
  • bb
    5.0 out of 5 stars Air out cushion before using
    Reviewed in the United States on May 23, 2025
    Verified Purchase
    I have owned this cushion for about one year. I bought it to add extra cushion for an office chair that was losing support. It is, by far, the best seat cushion I have used. It is well constructed and truly supports where other, cheaper cushions collapse. Purple is well worth the money and I even bought a thinner version for my dining room chair. I think this would be a tremendous product for wheelchair users or those who have had an injury.
    Things to know: when first opened, the plastic has a strong odor. I set the cushion in my garage until the odor was gone. This is a HEAVY cushion so not one that you would use as a portable. It is three inches thick and raises your feet off the ground, so I use a small, low foot stool for proper alignment.
    This is a great product. You get what you pay for.
    Report
  • Marcus Johansson
    5.0 out of 5 stars Actually relieves pressure—way more than memory foam ever did
    Reviewed in the United States on June 5, 2025
    Verified Purchase
    The media could not be loaded.
    I’ve tried a bunch of seat cushions over the years—from cheap gel pads to overpriced memory foam—and none of them did what this Purple one does. The grid design actually distributes pressure instead of just flattening out like a sponge. I use this on a basic desk chair and sometimes even bring it to work or long drives. Within 15 minutes, I could feel how much less pressure there was on my tailbone and thighs. It’s not squishy in a fake way either—it has bounce but keeps support.

    Heat doesn’t build up like it does with foam, which is great if you sit for hours. The material feels weird at first (like jellyfish meets waffle) but you get used to it quickly, and now regular cushions just feel wrong. It’s not compact or discreet, but I’d rather have comfort than pretend a brick of foam is doing anything.

    If you’re someone with back issues, WFH for long stretches, or just tired of ass pain mid-Zoom call, this cushion actually delivers. Not hype. Real difference.
    Report
  • Brandon Edwards
    5.0 out of 5 stars USED FOR 2 YEARS
    Reviewed in the United States on July 16, 2025
    Verified Purchase
    ***Not compensated in any way for this review***

    Purchased August 2023 (2 years prior to review)

    This cushion is an absolute game changer! I spend long straight hours sitting in a chair because I play poker for a living. After a few hours things start to get uncomfortable especially with rink dink cheap chairs. With this product it is never an issue. Has not flattened or lost it's shape that I can tell. I did rotate it ever so often. I've never sat on a cloud before, but I couldn't imagine that feeling better than this

    PROS-
    Most comfort you could imagine
    Maintained shape and firmness after multi years of use

    CONS-
    It is very heavy, but most people won't be packing it around like me
    The cost is a bit much
    Report
  • JR
    4.0 out of 5 stars Worth buying the real thing, very pleased with the quality and comfort
    Reviewed in the United States on June 9, 2025
    Verified Purchase
    I don't spend money just for the sake of spending money, but I think this is one of the products that's worth buying the name brand. Several months ago, I tried a knockoff of the same type of cushion (grid, etc.) that was about 1/3 of the cost and the entire month I had it I was debating whether or not it made enough of a difference to justify keeping (I returned it). With this one from Purple, as soon as I sat on it the first time, I knew I'd keep it and still feel the same way about it after using it a while.

    I deducted half a star because I think it's somewhat overpriced, even with buying it on sale. I deducted another half star because it doesn't stay in place quite as well as I would like, especially considering the price. It stays in place moderately well, and it would probably do a bit better on some chairs than the one I have, though I can imagine it doing worse on some other chairs too, but I still have to slightly reposition the cushion every time I sit down if I need or want it to be in the "right" place.

    I've now been using this cushion for a month - long enough to feel qualified to say it has significantly improved my ability to sit and work at my computer for extended periods, but I haven't owned it long enough to offer insight into the longevity. It feels like it'll last a while, but only time will tell. I've also been using the cushion exclusively at my desk, but when I'm able to get back out on the road for some long trips in my van, I'm looking forward to using it there too. If it was cheaper, I'd probably buy a second one to keep one in the van and one at my desk. With my specific issues, on a good day, I used to be able to sit at my computer for up to maybe two or three hours total before the pain would be bad enough that I had to be done for the day, but with using this cushion I can go about three times as long. Sitting at my desk for sometimes several hours at a time, I don't know how to gauge the cooling effect, but I certainly don't get a hot butt.

    I had considered the next step down from this model, the "Office Chair Upgrade", but based on my experience with the other cushion I tried, I knew I wanted one that was big enough to cover the entire seat of my chair and that first one wasn't big enough. When I got the that one, I didn't think it would make as much of a difference as it does for me to have the cushion cover the full seat. The "Ultimate" is big enough to cover the seat side to side on my office chair and only falls a little short at the front edge, which is fine for me. Since my chair has a contoured seat already, I might have preferred a completely flat cushion, but not at the expense of size.

    For those who haven't tried cushions like this before, it's worth mentioning how it's going to affect the seat height and how that extra height could end up being positive, neutral, or negative. When I tried the knockoff, I wasn't thinking about how much it would change the seat height and it was a little surprising. But, I'm also a bit of a stickler when it comes to ergonomics, especially with some of the physical issues I have. Someone who doesn't need things to be as dialed in will be less affected.

    At my desk, I think the added height is an overall slight net positive: I'm tall enough to compensate for the cushion by adjusting my seat height without bottoming it out and since the armrests on my chair aren't adjustable, it slightly improves that for me so I'm using better posture and arm position for typing. For someone shorter, it could be the case they'd need to plan on a footrest or something to maintain proper ergonomics. In my van, though I haven't used it there yet, I expect it's going to be a solid positive because, while I'm tall enough that I'm not bottoming out my office chair even after adjusting it to compensate for the cushion, I'm short enough that the seat in my van (Ford E350) isn't comfortable for me for long trips since it isn't adjustable. This will give me the extra seat height there that I want there.
    Report