Orthopedic Lumbar Support Cushion
OrthoBase™️
The One-Piece Orthopedic Sitting System
Your spine curves, but every seat is flat. Spruka's OrthoBase supports your back and lifts the weight off your tailbone, so you can drive 10 hours straight without shifting in your seat.
- Your tailbone never touches the seat Every mile jams your tailbone into that rock-hard seat. The hole keeps it off the seat and spreads your weight across the entire cushion
- Fills the lower back gap The raised back stops your spine from sinking into the seat, so the slouch and the back pain never start
- Won't pancake out Cheap cushions go flat within months. This foam holds its shape for years, even if you're 340 pounds
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- Ships by Aug 11 to US
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#1 Ortho-Recommended Car Seat Cushion
Your lower back curves. Every seat is flat. So every hour you sit, all your weight jams your tailbone into the seat while nothing supports your spine.
The OrthoBase fixes both at once. The hole keeps your tailbone off the seat and spreads your weight across the entire cushion. The raised back fills the gap behind your lower back, so the slouch and the pain never start.
Test it for a full 60 days, in your truck, your car, your chair. If your back doesn’t feel the difference, send it back and we’ll refund every penny.
SUITABLE FOR: Truckers, drivers, and desk workers whose back, tailbone, or legs start hurting by hour 3 of sitting.
FEELS LIKE: Firm, supported relief the second you sit down. Not soft like cheap cushions, not hard like your seat. Back, butt, and tailbone supported at once.
HOW IT WORKS: The hole keeps your tailbone off the seat. The raised back stops your spine from sinking into it. Less pressure, less shifting.
PERFECT FOR: Anything from a 3-hour sit to a 10-hour drive. Any seat that leaves you numb, stiff, or sore.
FREE FROM: No flat foam. No flimsy comfort pad. No “just stretch more.”
You have 60 full days to test it in your truck, your car, your chair. If your back doesn’t feel the difference, send it back and we’ll refund every penny. No questions asked.
You either love sitting again, or it costs you nothing.
What Spruka drivers reported:
97%
felt less tailbone pressure while sitting
94%
cut back on painkillers, PT, and chiropractor visits
91%
felt less stiff standing up after long sits
89%
sat more hours without shifting on drives and desk days
Based on a 30-day survey of 412 verified Spruka users · January 2026.
20,000+ Happy Customers
Over 56M Views On Facebook
Dr. Matthias Müller, MD, FAAOS
"Long sitting loads the tailbone, hips, pelvis, and sciatic pathway. Spruka's OrthoBase helps unload that pressure, improve sitting tolerance, and make everyday chairs feel safer. That's why my patients love it."
You don't have a back problem. You have a seat problem.
The Problem + Cause
The Car Seat Is The Reason For Your:
Back Pain
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Every hour you sit, that gap lets your spine slump and your discs take the load your seat should be carrying. That's why the ache starts a few hours in and follows you home. OrthoBase fills the gap, so your spine keeps its natural curve at hour ten, not just hour one.
Sciatica
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The sciatic nerve runs right under the muscles you sit on, and a hard flat seat presses on it for hours at a time. That pressure is the numbness, the pins and needles, the pain down the back of your leg. The center cutout and contoured base move the weight off the nerve path instead of crushing it into the seat
Butt & Cheek pain
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Flat seats press your full weight onto two small sitting bones. That's the aching cheeks, the numbness, the nonstop shifting. The contoured base spreads the weight so no single spot takes it.
Motor Vehicles Seats are the worst enemy For your lower Back
A one-time purchase that relieves tailbone, back, and hip pain without draining your wallet.
But Why OrthoBase?
Because it worked!
But Why OrthoBase?
Because it worked!
0%
Of tailbone pressure taken off the seat. The cutout means nothing touches it.
$1,560
What a year of chiropractor visits can cost. This is one payment of $69
0 days
Risk-free. If it doesn't change how sitting feels, full refund.
The Math
What It Costs To Fix Sitting Pain
The sticker price is one number. What you actually spend is another.
 |
Cheap Foam Cushions | Chiropractor Visits | |
|---|---|---|---|
| Upfront cost | $69 | $19.99 | $65 per visit |
| How long it lasts | 5+ Years | Flattens in ~6 months | Until the next visit |
| Repeat buys per year | 0 | 2–3 | 12–24 visits |
| Estimated 5-year total | $69 | $200–$300 | $3,900–$7,800 |
Estimates based on typical U.S. pricing.
Our Promise
60-Day Money-Back Guarantee
Use Spruka’s OrthoBase daily for 60 days. It must make your seat feel more supported, easier to sit in, and less punishing on your back, hips, tailbone, or legs.
If it doesn’t help you sit longer without paying for it later, refund it.
Full refund. No questions asked.
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60-Day Risk-Free Trial
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Frequently Asked Questions
Is it only for truckers?
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No. We built it tough enough for truckers sitting through 11-hour drives, but it’s made for anyone whose body suffers from long sitting. If your chair hurts your back, hips, tailbone, or legs, this was built for you.
Can I use it every day?
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Yes. Use it anywhere you sit for long periods, behind the wheel, at your desk, at dinner, or on the couch. It’s made for daily sitting support.
Will it help with sciatica?
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It helps unload pressure from the tailbone, hips, pelvis, and sciatic pathway — the exact areas long sitting tends to punish most. It is not a medical cure, but it is built to make sitting feel safer and more supported.
Why not just stand up and stretch?
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Because some people can’t. Truckers, drivers, office workers, and anyone stuck in a seat for hours need support while they sit, not advice that only works after the pain starts. All the stretching will be undone when you continue sitting with bad posture hours every day.
Isn't this just another seat cushion?
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No. Most cushions are soft pads that flatten under your body. Spruka’s Orthopedic Sciatica Support is built to unload tailbone and sciatic pressure while supporting your hips and pelvis through long sitting.
What makes it different?
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Spruka was built around the reality of long sitting: pressure builds, pain spreads, and your chair can follow you long after you stand up. This support is designed to reduce that seated pressure before it steals the rest of your day.
Memory foam cushion provides excellent support and pressure relief for extended sitting. Customers praised its comfort, quality materials, and ergonomic design that helps with posture and tailbone pain. Some noted it feels firm initially and adds 2-3 inches to seat height. One customer experienced shipping damage but received outstanding replacement service.
W
I was very skeptical when I got mine, but I’m here to tell you it’s freaking changed my life. I got a bony ass and a bad back and I finally learned that the hard leather seats in my truck are why my back’s been hurting.. this cushion right here has relieved all my pain in a matter of days. I recommend this especially for CDL truck drivers that drive 11 hours a day.
L
Have a herniated disc and very very bad sciatica. Just received it today and it felt weird at first since I’m not used to back support like this, but within 20 minutes I felt much better. Less pain overall. Will continue to see how this cushion feels after 2 weeks, but so far so good.
M
I have severe pain in my tailbone and hips and it doesn’t help that my chairs are all hard (mainly wood). I’m ~280 lbs and 6’5 so I was skeptical about if it would fit bigger butts and actually be supportive enough for me. Lucky for me, it was. After about 5 days my pain had vanished and I bring this everywhere I go now! Will buy another one for my brother since he’s a trucker and sits 10-11 hours a day.
D
I commute to work which is about 3-4 hours a day and I’ve started suffering from low back pain and sciatica. Gave this a shot and it works! Sitting in traffic and driving on it feels really nice on the back and butt and it’s really comfy, like you are riding on a cloud. No longer feel pain or numbness
Q
Outstanding! I use this now exclusively in my wheelchair. It's formed perfectly to provide support. It is thick and strong enough to hold its shape. Yet it is soft enough to be comfortable. It stays in place! No constant shifting and adjusting. Easy to remove and put back on when desired. No need to be fussing with a bottom cushion and back cushion and a lumbar support cushion. I love this all in one, shaped cushion.
M
Excellent orthopedic memory foam cushion. It is very comfortable and provides great relief for my lower back and tailbone. Since I use it, I can sit for longer without discomfort. The foam is firm but comfortable, and the cover is easy to clean. Very good quality and totally recommended!
J
I spend a lot of time sitting at a desk and this cushion and have developed back pain because of it. This memory foam is supportive without being too firm, and it helps me sit without pain for longer periods. One thing I was concerned about before purchasing was whether it would hold up to my weight. I weigh 273 pounds, and I am happy to say that the cushion provides excellent support without flattening out. For anyone looking for extra comfort while sitting, especially if you spend long hours at a desk or are looking for support at a higher body weight, I would definitely recommend giving this cushion a try.
A
Love this! This is a game changer for sure! Had broken my tailbone due to a snowmobile accident and with this, I am able to sit for longer periods of time, as it has the opening for the tailbone, so there’s no pressure on the tailbone. It is also super comfortable. I have one in my car to drive and another one for my office at work.
C
I was dealing with severe lower back pain and sciatica and this has eased my pain completely! It is nice looking and very comfortable, like sitting on air. I normally use it on my car, sometimes I will take it to our baby’s reading/play room use it as a floor chair to read story books for them.
S
I just received my sciatica seat cushion yesterday while I WFH. I loved it from the moment I sat down. I sit for long periods, and I’ve been dealing with severe sciatica pain and tailbone discomfort. This cushion has made a noticeable difference—my posture has improved, and for the first time in a very long while, I felt comfortable sitting at my desk. I’m extremely satisfied with this purchase and plan on buying another one for my car.
B
I bought it for my ergonomically-enhanced, electronic recliner. Even so, my back has been uncomfortable since I got the chair, even more so as I lost a significant amount of weight. I am a mildly arthritic 70 years young, 5'1 tall, weighing in at about 100 lbs now, which left little natural padding, and sitting was putting stress on my tail bone. I chose this product mainly because it has not only the seat pad, but the little part that encompasses my lower back as well. I also liked that there is a small cut-out that would hopefully take the pressure off the source of discomfort. I know it's really early in the assessment process, but I just sat in this recliner including the cushion, for the past hour and a half in complete comfort! If it holds up over time, my 5-star rating will stick, and I hope to enjoy this for a long time to come. I'm very happy with this purchase.
P
I really wanted this product to work because I've been dealing with sharp low back pain for years. My PT told me that it would not be possible to force my spine straighter through will power alone and that I would need some additional lumbar support, so I got this. It did feel very strange for the first few minutes and I thought the back wasn't going to be high enough but in a very short time it became very comfortable. Best of all, over the next few days, my back pain receded and eventually disappeared. Highly recommend!
B
Bought 2 of these, 1 for me and 1 for my wife. This is a great seat cushion with a cushioned seat back as well as a memory foam seat cushion. I have used seat cushions before, but the seat back provides a whole new level of support and comfort. I sometimes sit at my desk for 8 hours or more and get a back pain in my lower back. The memory foam allows enough back support to really help provide pain relief.
The cushion is wide enough to provide good support but still small enough to fit in both of my computer chairs. The material seems durable and tear resistant, and so far it has held up well.
I am very pleased with this purchase.
N
As a truck driver, I spend 10–12 hours behind the wheel most days, and my lower back used to be killing me by the end of a run. I've tried a few cushions before, but this one is the first that actually feels supportive. The tailbone cutout really makes a difference, and the built-in back support helps me stay comfortable on long hauls. I've been using it for three weeks now and don't leave home without it. Definitely worth it for anyone who drives for a living.
G
The box arrived damaged and the cushion was a little deformed
Edit: Customer service reached out to me and shipped me a brand new one free of charge! A+ customer service 😃 would change this to 5 star if I could
P
I like my memory foam extra extra firm and this is more of a balance between firm and soft. Would probably be comfortable for most people but I'm a bit of a sadist lol. Do like the shape, just hope they have a firmer version come out.
L
Seat cushion is comfy and helps with my butt pain, I just wish there was a pink or white color to match my chair.
E
I bought this for my office chair, and it has been a total lifesaver. The memory foam material is premium quality—it feels sturdy and durable, yet the outer cover is gentle and soft to the touch. It has a great balance of firmness and comfort, and despite its solid support, it is lightweight and easy to carry. This versatility makes it perfect to switch between chairs. It has significantly helped with my spine comfort and relieved my tailbone pressure. Exceptional value for money and highly recommended!
B
This cushion exceeded my expectations. It provides excellent support and helps maintain proper posture while sitting for long periods. The material feels high quality, and the ergonomic design makes it very comfortable. Highly recommended for anyone looking for added comfort and pressure relief.
M
It’s painful for me to sit on hard chairs…we take this with us everywhere we go, and, although it’s a little bulky, it means I can sit comfortably in restaurants and in our truck. It’s well-made, and the memory foam is soft enough for comfort and solid enough to give good support. It adds about 2-3 inches, which makes it easier to sit down and get up from lower seats.
P
Purchased this for my father who is wheelchair chair bound . It relieved the pressure off his tail bone. He gets support on his back and buttocks. Glad to see he is more comfortable.
M
I bought this cushion for my husband, who spends a lot of time sitting at work, and it has been an excellent investment thanks to its ergonomic memory foam design; it provides very comfortable lumbar support that effectively relieves back pressure after long workdays. The outer fabric is quite soft, breathable, and easy to clean, and the non-slip base works wonderfully, keeping the cushion firmly in place on his chair without shifting. However, on the downside, he found it felt quite firm and rigid during the first few days until it molded to his body; additionally, its thickness significantly raises the seat height, forcing him to readjust his workspace setup.
D
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K
Works as advertised
L
Amazing
T
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