The Most Technologically Advanced Cushions

Engineered for Comfort – Better than Gel Seat Cushions, Foam Seat Cushions and Air Cushions!

LiquiCell keeps on working long after the point where Gel, Foam or Air technologies stop

Better than Gel Car Seat Cushion, Foam Cushions or Air!

Ask Doctor Jo
Reviewed Our Seat Cushions!

Watch the Cushions in Actions! - A short Video

Which Cushion should I buy - A short Video

Amazon's Best Choice - Ergo21 Original Seat Cushion

Sit in Extreme Comfort – All Day Long – For Hours!

Leave behind your tired and achy backside with our Ergo21 Extreme Comfort Seat Cushion! With the power of advanced LiquiCell Technology, our seat cushion makes it possible for you to sit for hours upon hours without aches or soreness.


This is the science of comort

An aid for;

buttock pain – hip pain – groin pain – leg pain – sciatica and other issues involving sitting.

Ergo21 Original Cushion – 2 Sizes Available

Regular Size: 18″ x 17″ x 2″
Weight: 1.75lbs.
Recommended for those who weigh up to 175lbs and are up to 5’9

Large Size: 19.5″ x 19″ x 2.5″
Weight: 2lbs.
Recommended for those who weigh up to 175lbs + or need extra support
(Please measure your office seat or car seat for headroom)

original cushion with dimension
original cushion flyer
Ergo21 Original Cushion Box

Ergo21 Original Cushion is Great for:

Home • Office • Cars • Trucks • Recliners • Meditation • And More

What LiquiCell Will Do for You…

LiquiCell is medical technology that protects skin tissues from being stretched and torn. Ultra-thin cells contain liquid that’s in constant motion allowing your body to glide and float. What this means to you; is instant comfort, reduction and elimination of numbness, fidgeting, and tail burn.

Anatomy of a Perfect Seat Cushion

A seat cushion should not restrict your movements or cut off circulation. By carefully combining the proper density of polyurethene foam and a layer of LiquiCell Membranes to maintain blood flow under the tail bone, hot spots and vertical pressure on the sitting bones is virtually none. In addition we use the highest quality fabric that’s durable, long lasting and cooling. Watch our video about LiquiCell Technology below.

Our Ergo21 Extreme Comfort Seat Cushion surely has the WOW factor and will put a smile on your face!

  • Thin Liquid-filled membranes improve blood flow and circulation by 150% – Enjoy a solution that surpasses air, gel & foam
  • An aid for buttock pain, hip pain, groin pain, leg pain, sciatica and other issues involving sitting. Reduce fatigue, numbness & tail burn – Enjoy sitting for longer periods of time.
  • Ultra-thin cells contain liquid that’s in constant motion allowing your body to glide and float
  • Our customers use our amazing seat cushions while watching TV, driving cars or trucks, on their wheelchairs, and on their office chairs for sitting comfort
  • LiquiCell keeps on working long after the point where other comfort technologies stop



– Mark Rodgers

What Customers Are Saying…

tstimg-cushion-1“I used to feel restless sitting in my chair all day at work. Now, I can work continuously without feeling like I need to stand or walk around frequently. Because of this seat cusion, I don’t feel sluggish while working at my desk and am comfortable all day long!” – Alyssa F.

“As a part of my job, I spend countless hours in my vehicle. My first experience with the LiquiCell Seat Cushion was a road trip of 1,200 miles in 5 days, and the relief and comfort from the pad were remarkable. Since then, I have traveled close to 10,000 miles and can honestly say that I would not leave home without it.” – Murray D.

“Our employer got your seat pads for everyone in our office and we love it! The true test for me was when I sneaked it home for the weekend and was able to watch two movies back to back which I could never do before. I give it five stars. Highly recommended.” – Prithvi (IT Professional)


  • Over 150% improvement in circulation
  • Reduces soreness in tailbone & back
  • Sit in comfort everywere you go
liquicell explanation
Watch this video to see our Lumbar Support Cushion in Action! Better than Gel, Foam or Air Lumbar Cushions

“I really like the lumbar cushion in the car. I feel like it helps prevent me from rolling my shoulders forward because I have something to push my shoulders into. I have always thought car seats are not designed very well, and kind of encourage you to have bad posture. I feel like the lumbar cushion helps get me in that neutral position.”

– Doctor Jo

LiquiCell vs Gel Seat Cushion, Foam Seat Cushion & Air Cushion
liquicell vs gel vs foam vs air

Clearly The World’s Best


(Gel, Foam & Air are all inferior in side-by-side comparisions.)


Long Term Blood Perfusion When Sitting on Three Different Cushioning Materials”

Goossens, Delft University of Technology, March 2006

Delft University conducted a study to determine the affect of various cushioning materials on blood perfusion (flow) over time. The aim of the study was to compare blood perfusion in the tissue in a live setting as opposed to a laboratory to get a more accurate reflection of real life conditions. The results of the study show that from the initial point of contact to some time later, LiquiCell actually improves blood perfusion by 150%, whereas gel and foam show a decrease in blood perfusion.

liquicell blood perfusion chart
special offers

$69.95 to $89.95 for one


When You Order 2
or More Original Cushions


Original Cushions currently shipping are revised, thicker and denser.

original cushion

Sport Seat Cushion

sports cushion cta

Bicycle Seat Cushion

Coccyx Cushion

better than gel Coccyx Cushion or foam Coccyx Cushion

Mattress Overlay


Lumbar Cushion

Lumbar Cushion

Travel Cushion

Travel Seat Cushion


***** This is the cushion I’ve been looking for the past two years

I purchased this seat cushion for my truck. We are full-time RVers and travel days can get pretty long. I’ve tried several cushions and it was turning into a Goldilocks and the Three Bears situation… “this one’s too thick,” or “this one’s too soft,” or “this one cuts off the circulation in my legs at the front of the seat.” This seat cushion has addressed all those issues and meets my needs perfectly.

By Rob L – Verified Purchase

***** Best seat – Uber Driver

If you struggle to sit in a car or at a desk due to sciatica or low back pain, this cushion is for you. As an Uber driver with over 2,200 rides, this product is simply the best of the best for assuring positive blood flow over the course of a long night at the wheel.

By Robert McclainVerified Purchase

*****No More Butt Pain

Love this cushion in my car. I drive a 2015 Hyundai Sonata and I’ve always felt that my lower back was being unsupported with the regular seating. I would always be adjusting every few weeks to fix my posture but was never satisfied in my driving position. I got one of these and put it on my car seat and wow. I feel like I’m sitting on a cloud. It supports my lower tail bone and my butt perfectly. It feels that cars should feel this way naturally but they don’t.

B JH LeonAmazon Verified Purchase

*****Makes Long Drives Comfortable

“Got this and the lumbar cushion for my wife’s car. She likes it. Plan to get another set for my mother’s car.”

By Ds TritVerified Purchase

*****I have Sciatica and Spinal Stenosis

I really like this seat cushion, after reading reviews ; I ordered , not disappointed at all ….most seat cushions make me sweat after seating awhile; can be embarrassing to say the least …..I have sciatica and Spinal stenosis & was operated on for herniated discs … I have problems with hard bottom chairs or too soft , Helps me when driving any distance …very comfortable …..I sent for a 2nd set , now have one set for car , one for bottom for my leather recliner …..

By Louise Jani ChapmanVerified Purchase

I love this seat cushion. I have been trying out different seat cushions to alleviate the pain in my back and legs. I’ve tried a memory foam cushion, and another highly rated ergonomic cushion – both were able to reduce the pain only slightly. This is the third type of cushion I tried. Within a day or two I was no longer in pain while driving or sitting.I ordered another one soon after. Great!

– Jamie

Thanks for the feedback! We looked at 19 different foams, then narrowed it down to seven. We chose this high resilience foam, that doesn’t bottom out and at the the same time offers support. The layer of LiquiCell prevents hot spots which prevents shifting, thereby keeping the spine and neck aligned to give you long term pain free comfort. Feel free to all on us anytime we can be of assistance.

Best Regards,

Steve Gambhir -Product Specialist