--- product_id: 32755339 title: "Xtreme Comforts Seat Cushions | Office Chair Cushions for Desk, Car, Wheelchair| Ergonomic Memory Foam Seat Cushion for Support & Comfort | Helps Improve Sitting Posture for Work & Body Relief" brand: "xtreme comforts" price: "Β₯21687" currency: JPY in_stock: true reviews_count: 13 category: "Xtreme Comforts" url: https://www.desertcart.jp/products/32755339-xtreme-comforts-seat-cushions-office-chair-cushions-for-desk-car store_origin: JP region: Japan --- # Premium memory foam adapts to body 17.9" x 14" ergonomic size Machine washable breathable cover Xtreme Comforts Seat Cushions | Office Chair Cushions for Desk, Car, Wheelchair| Ergonomic Memory Foam Seat Cushion for Support & Comfort | Helps Improve Sitting Posture for Work & Body Relief **Brand:** xtreme comforts **Price:** Β₯21687 **Availability:** βœ… In Stock ## Summary > πŸͺ‘ Sit smart, feel unstoppable β€” upgrade your comfort game now! ## Quick Answers - **What is this?** Xtreme Comforts Seat Cushions | Office Chair Cushions for Desk, Car, Wheelchair| Ergonomic Memory Foam Seat Cushion for Support & Comfort | Helps Improve Sitting Posture for Work & Body Relief by xtreme comforts - **How much does it cost?** Β₯21687 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/32755339-xtreme-comforts-seat-cushions-office-chair-cushions-for-desk-car) ## Best For - xtreme comforts enthusiasts ## Why This Product - Trusted xtreme comforts brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Effortless Maintenance:** Breathable, zippered mesh cover is machine washable for hassle-free freshness. - β€’ **Durability Meets Luxury:** High-quality memory foam maintains firmness and shape, ensuring lasting relief and support. - β€’ **Ergonomic Precision Fit:** Designed to perfectly contour your body for all-day comfort and posture support. - β€’ **Posture-Perfect Support:** Relieves tailbone and back pain by promoting healthy spinal alignment during long sitting sessions. - β€’ **Versatile Comfort Anywhere:** Ideal for office chairs, cars, wheelchairs, and travelβ€”comfort that moves with you. ## Overview The Xtreme Comforts Seat Cushion is a premium ergonomic memory foam cushion designed to improve sitting posture and relieve back and tailbone discomfort. Measuring 17.9" x 14", it fits office chairs, car seats, and wheelchairs, offering versatile support. Certified for safety and quality, it features a breathable, machine-washable cover and durable foam that retains its shape for long-lasting comfort. ## Description desertcart.com : Xtreme Comforts Seat Cushions | Office Chair Cushions for Desk, Car, Wheelchair| Ergonomic Memory Foam Seat Cushion for Support & Comfort | Helps Improve Sitting Posture for Work & Body Relief : Health & Household Review: Premium Quality for Long Workdays and Travel - I love this lumbar back support pillow! Lifesaver for Back Pain – Excellent Support! This Xtreme Comforts lumbar pillow is absolutely amazing! The memory foam provides the perfect balance of firmness and comfort, cradling my lower back beautifully. Since using it, my posture has improved significantly, and my daily lower back pain is completely gone. It stays perfectly in place and doesn't flatten out over time like cheaper pillows. I love how easy it is to move this lumbar support pillow around. The adjustable strap holds it tightly to my office chair, my car seat, and even my kitchen chairs without slipping. The mesh cover is breathable, so it doesn't get hot during long hours of sitting. but Xtreme Comforts nailed the design on this one. It is an absolute must-have if you spend long hours sitting at a desk or driving in a car. The ergonomic shape perfectly targets the lumbar region, relieving pressure instantly. The cover is easy to unzip and wash, and the overall construction feels premium and durable. True value for money! It is a fantastic, high-quality cushion that goes everywhere with me! Highly recommend! Review: LOVE this back support! Perfect fit for me :) - I bought two cushion supports for my car seat (which have helped a lot). I'm driving a 2017 Prius and the drivers seat (combined with other factors I'm sure) caused my back to have incredibly severe, painful spasms. I've been doing many things to help Heal it (more details below) and one of them was to buy support cushions. The first cushion I bought (and I'm still using) is a wedge shaped cushion to sit on. My seat is slanted oddly so the front of the seat is higher than the back of the seat which irritates my back ... I wanted it to be more even so the wedge cushion made by Clever Yellow works well enough, and is available on desertcart. The second is this cushion to support my lumbar region. I like it because it has a convex (rather than concave) shape... most lumbar support cushions seem to be concave and that tends to bother my back. This cushion was one of the only convex cushions I could find and I love it!! When I first sat back on it I felt the relief up my spine/back and felt like I was entering a transcendent state. It really was that helpful to me. I also like it because it's taller than most, just the right amount of firmness for me, very thick, has a removable cover, and really supports the length of my back (taller cushion than most). I tried this cushion on a variety of different couches and chairs in addition to my car seat and it worked well on most of them. It was only a bit too thick on one, for me ... a traditional, rolling office chair. It felt like I was falling off the chair a bit because of it at first, although I adjusted it and it was ok. I don't tend to need a cushion on that chair anyway because it offers adequate lumbar support. It *is* a thick pillow. So that is something to consider when purchasing. It pushes me forward a bit in my car seat, which I actually like (I just put my seat back), but that may be an issue for some people. To me, because it is thick, it is also firm. I can sink back and still feel very supported. The cushion doesn't get flattened out like some. I also tried another lumbar cushion by NurtureSoft but it was more concave shaped than I thought it would be from the pictures and it was not as thick or as firm. It didn't work out for me but it got very good reviews so it may work better for you! It was roughly the same dimensions of this one I think, but rather than being taller (vertically), it's wider (horizontally). I wanted and needed more support up the length of my spine. Someone else might want/need more support on the sides. That could help determine which one you choose. Plus your height/torso length! So it may take a little trial and error to find the right one. Luckily, the Xtreme Comforts cushion was my first choice and ended up being my favorite! :) Some other things that have helped my back, that might help you too ... * The book Freedom from Pain by Peter Levine. I can't write much about this one yet, as I just received it today, but I'm looking forward to reading it. I've been doing Trauma/Tension Release Exercises (TRE) multiple times a day and they have really really helped me (along with gradually increasing the distance of my walks), so I'm optimistic about learning about other exercises in the book! * Also planning on buying insoles and new shoes, as well as do Network Spinal Analysis at the chiropractor (a very gentle approach ... traditional chiropractor tends to trigger my body and make the bracing worse). I'm hoping the chiropractor might be able to suggest insoles/shoes and posture-correction apparel as well. A month ago I was unable to move because of my back pain. It's gotten much better and I have Faith it will continue to do so! Grateful for these supportive products to help me function better along the way!! If you're reading this and in pain you're in my heart and prayers. Hope you feel better soon!!! :) ## Features - [Comfort That Lasts] This car seat cushion adapts to your body to help relieve back and posterior discomfort, certified for quality and safety with OEKO-TEX and CertiPUR-US, and also works as a supportive seat cushion for office chairs - [Versatile Support] Whether used as a desk chair cushion, back support for office chair, car seat cushions for driving, or supportive wheelchair cushions, it offer lasting comfort, support, and provide a versatile solution for home and travel - [Great Posture Support] Promote better posture and ease long sitting sessions with this memory foam seat cushion for car that doubles as a coccyx cushion for tailbone pain relief cushion supporting your spine and improve your sitting experience - [Durable & Resilient Design] Built with good quality memory foam, this butt pillows for sitting tailbone maintains firmness over time, while also serving as a reliable chair cushion for back pain keeping its shape through daily use - [Convenient Cleaning] This office chair cushion for butt comes with a black mesh cover that isn't all looks, it's breathable & machine washable too, remove the zippered cover & toss it in the wash for an easy clean sciatica pain relief pillow ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01IM5CFZM | | Age Range Description | Adult | | Best Sellers Rank | #54,527 in Office Products ( See Top 100 in Office Products ) #278 in Back Cushions & Seat Cushions | | Brand | Xtreme Comforts | | Brand Name | Xtreme Comforts | | Coin Variety 1 | Back Support Pillow,Lumbar Support,Seat Cushion | | Color | Black | | Customer Reviews | 4.4 out of 5 stars 4,876 Reviews | | Fabric Type | 60% Cotton, 40% Polyster | | Fill Material | Memory Foam | | Item Dimensions L x W | 17.9"L x 14"W | | Item Firmness Description | Firm | | Item Weight | 2.1 pounds | | Manufacturer | Xtreme Comforts | | Manufacturer Part Number | Seat Cushion | | Material Features | Breathable | | Material Type | Premium and travel bag | | Number of Pieces | 1 | | Pattern | Solid | | Product Care Instructions | Machine Wash | | Recommended Uses For Product | Car | | Shape | Semicircular | | Size | 18X14X3 inch | | Special Feature | Portable, Washable | | Special Features | Portable, Washable | | Specific Uses For Product | Sitting, Traveling | | Target Use Body Part | Back, Legs | | UPC | 600209789395 | | Unit Count | 1 Count | ## Product Details - **Brand:** Xtreme Comforts - **Color:** Black - **Fill Material:** Memory Foam - **Size:** 18X14X3 inch - **Special Feature:** Portable, Washable ## Images ![Xtreme Comforts Seat Cushions | Office Chair Cushions for Desk, Car, Wheelchair| Ergonomic Memory Foam Seat Cushion for Support & Comfort | Helps Improve Sitting Posture for Work & Body Relief - Image 1](https://m.media-amazon.com/images/I/71ltz-AdkfL.jpg) ![Xtreme Comforts Seat Cushions | Office Chair Cushions for Desk, Car, Wheelchair| Ergonomic Memory Foam Seat Cushion for Support & Comfort | Helps Improve Sitting Posture for Work & Body Relief - Image 2](https://m.media-amazon.com/images/I/91NLUd5hlaL.jpg) ![Xtreme Comforts Seat Cushions | Office Chair Cushions for Desk, Car, Wheelchair| Ergonomic Memory Foam Seat Cushion for Support & Comfort | Helps Improve Sitting Posture for Work & Body Relief - Image 3](https://m.media-amazon.com/images/I/91mFXTkiYaL.jpg) ![Xtreme Comforts Seat Cushions | Office Chair Cushions for Desk, Car, Wheelchair| Ergonomic Memory Foam Seat Cushion for Support & Comfort | Helps Improve Sitting Posture for Work & Body Relief - Image 4](https://m.media-amazon.com/images/I/81Y9jDyP6OL.jpg) ![Xtreme Comforts Seat Cushions | Office Chair Cushions for Desk, Car, Wheelchair| Ergonomic Memory Foam Seat Cushion for Support & Comfort | Helps Improve Sitting Posture for Work & Body Relief - Image 5](https://m.media-amazon.com/images/I/81BPckHjPJL.jpg) ## Available Options This product comes in different **Team** options. ## Questions & Answers **Q: does this design comfortable for man to sit ?** A: As a 60 year old, 160 lbs. man with a history of back problems, I find it very comfortable. Worth the price (for me at least). **Q: Is this regular foam or memory foam?** A: This is not memory foam. This is more comfortable than memory foam which can be hot, too firm or too giving depending on the quality or type. I'm 180 lbs and suffer from sciatic type butt pain. I use this cushion over slightly padded table and office chairs. I've had my cushion for over a year and it has not flattened out or become indented. It's held up great and is large enough to cover the chair seats. **Q: 2 cushions for coccyx bone comfort r 2 firm; am only 100 lbs (not much pressure) want cushion w/ some give so sore skin heels - is this the right one?** A: No, this isn't the right one for you. It's a nicely constructed cushion, but I returned it after a week - much too firm with no give; raised me in my chair by 3 inches (I'm a 165 lbs male). Instead I ordered an EVA Medical Sloping Coccyx Cushion, Sold by Med Shop and Beyond. I've been using it for a couple weeks - it's much better; less firm, more comfortable, and still protective of the coccyx. **Q: my old cushion iis 18 x 20 will this fit large seat cushion with carry handle and anti slip bottom gives relief from back pain xtreme comforts** A: It is large and will fit. But I found it mushy w no alot of comfort as the cushion needs to be firmer and you slide toward on it w the design ## Customer Reviews ### ⭐⭐⭐⭐⭐ Premium Quality for Long Workdays and Travel *by M***H on June 25, 2026* I love this lumbar back support pillow! Lifesaver for Back Pain – Excellent Support! This Xtreme Comforts lumbar pillow is absolutely amazing! The memory foam provides the perfect balance of firmness and comfort, cradling my lower back beautifully. Since using it, my posture has improved significantly, and my daily lower back pain is completely gone. It stays perfectly in place and doesn't flatten out over time like cheaper pillows. I love how easy it is to move this lumbar support pillow around. The adjustable strap holds it tightly to my office chair, my car seat, and even my kitchen chairs without slipping. The mesh cover is breathable, so it doesn't get hot during long hours of sitting. but Xtreme Comforts nailed the design on this one. It is an absolute must-have if you spend long hours sitting at a desk or driving in a car. The ergonomic shape perfectly targets the lumbar region, relieving pressure instantly. The cover is easy to unzip and wash, and the overall construction feels premium and durable. True value for money! It is a fantastic, high-quality cushion that goes everywhere with me! Highly recommend! ### ⭐⭐⭐⭐⭐ LOVE this back support! Perfect fit for me :) *by M***Y on June 16, 2018* I bought two cushion supports for my car seat (which have helped a lot). I'm driving a 2017 Prius and the drivers seat (combined with other factors I'm sure) caused my back to have incredibly severe, painful spasms. I've been doing many things to help Heal it (more details below) and one of them was to buy support cushions. The first cushion I bought (and I'm still using) is a wedge shaped cushion to sit on. My seat is slanted oddly so the front of the seat is higher than the back of the seat which irritates my back ... I wanted it to be more even so the wedge cushion made by Clever Yellow works well enough, and is available on Amazon. The second is this cushion to support my lumbar region. I like it because it has a convex (rather than concave) shape... most lumbar support cushions seem to be concave and that tends to bother my back. This cushion was one of the only convex cushions I could find and I love it!! When I first sat back on it I felt the relief up my spine/back and felt like I was entering a transcendent state. It really was that helpful to me. I also like it because it's taller than most, just the right amount of firmness for me, very thick, has a removable cover, and really supports the length of my back (taller cushion than most). I tried this cushion on a variety of different couches and chairs in addition to my car seat and it worked well on most of them. It was only a bit too thick on one, for me ... a traditional, rolling office chair. It felt like I was falling off the chair a bit because of it at first, although I adjusted it and it was ok. I don't tend to need a cushion on that chair anyway because it offers adequate lumbar support. It *is* a thick pillow. So that is something to consider when purchasing. It pushes me forward a bit in my car seat, which I actually like (I just put my seat back), but that may be an issue for some people. To me, because it is thick, it is also firm. I can sink back and still feel very supported. The cushion doesn't get flattened out like some. I also tried another lumbar cushion by NurtureSoft but it was more concave shaped than I thought it would be from the pictures and it was not as thick or as firm. It didn't work out for me but it got very good reviews so it may work better for you! It was roughly the same dimensions of this one I think, but rather than being taller (vertically), it's wider (horizontally). I wanted and needed more support up the length of my spine. Someone else might want/need more support on the sides. That could help determine which one you choose. Plus your height/torso length! So it may take a little trial and error to find the right one. Luckily, the Xtreme Comforts cushion was my first choice and ended up being my favorite! :) Some other things that have helped my back, that might help you too ... * The book Freedom from Pain by Peter Levine. I can't write much about this one yet, as I just received it today, but I'm looking forward to reading it. I've been doing Trauma/Tension Release Exercises (TRE) multiple times a day and they have really really helped me (along with gradually increasing the distance of my walks), so I'm optimistic about learning about other exercises in the book! * Also planning on buying insoles and new shoes, as well as do Network Spinal Analysis at the chiropractor (a very gentle approach ... traditional chiropractor tends to trigger my body and make the bracing worse). I'm hoping the chiropractor might be able to suggest insoles/shoes and posture-correction apparel as well. A month ago I was unable to move because of my back pain. It's gotten much better and I have Faith it will continue to do so! Grateful for these supportive products to help me function better along the way!! If you're reading this and in pain you're in my heart and prayers. Hope you feel better soon!!! :) ### ⭐⭐⭐⭐ Great support *by M***E on April 4, 2026* Thick and comfy. Stays in place. Love it ## Frequently Bought Together - Xtreme Comforts Seat Cushion, Office Chair Cushions - Pack of 1 Padded Foam Cushion w/Handle for Desk, Wheelchair & Car Use - Back Support Pillow for Chair ο»Ώ- Travel Bag Included - Cushion Lab Patented Pressure Relief Seat Cushion for Long Sitting Hours on Office & Home Chair - Extra-Dense Memory Foam for Soft Support. Car Pad for Hip, Tailbone, Coccyx, Sciatica - Black --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/32755339-xtreme-comforts-seat-cushions-office-chair-cushions-for-desk-car](https://www.desertcart.jp/products/32755339-xtreme-comforts-seat-cushions-office-chair-cushions-for-desk-car) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-11*