--- product_id: 205244279 title: "YJWAN Car Wedge Seat Cushion for Car Driver Seat Office Chair Wheelchairs Coccyx Support Tailbone Pain Relief Memory Foam Seat Cushion" brand: "marggona" price: "Β₯19859" currency: JPY in_stock: true reviews_count: 13 category: "Marg Gona" url: https://www.desertcart.jp/products/205244279-yjwan-car-wedge-seat-cushion-for-car-driver-seat-office store_origin: JP region: Japan --- # 100% premium memory foam 20-inch wide ergonomic fit Non-slip rubber base & adjustable strap YJWAN Car Wedge Seat Cushion for Car Driver Seat Office Chair Wheelchairs Coccyx Support Tailbone Pain Relief Memory Foam Seat Cushion **Brand:** marggona **Price:** Β₯19859 **Availability:** βœ… In Stock ## Summary > πŸš— Elevate your drive, banish back pain β€” comfort that moves with you! ## Quick Answers - **What is this?** YJWAN Car Wedge Seat Cushion for Car Driver Seat Office Chair Wheelchairs Coccyx Support Tailbone Pain Relief Memory Foam Seat Cushion by marggona - **How much does it cost?** Β₯19859 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/205244279-yjwan-car-wedge-seat-cushion-for-car-driver-seat-office) ## Best For - marggona enthusiasts ## Why This Product - Trusted marggona brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Secure & Stable:** Dual anti-slip system with silicone base and adjustable strap keeps cushion locked in place. - β€’ **Premium Memory Foam:** High-density, breathable foam cushions for all-day comfort and durability. - β€’ **Ergonomic Wedge Design:** Contours perfectly to relieve tailbone pressure and promote healthy posture. - β€’ **Generous 20-Inch Width:** Fits most car seats and office chairs without slipping or tipping. - β€’ **Easy Care & Travel Ready:** Removable washable cover and compact vacuum packaging for on-the-go comfort. ## Overview The YJWAN Car Wedge Seat Cushion is a 20-inch wide, ergonomic memory foam cushion designed to relieve tailbone and lower back pain. Featuring high-density breathable foam, a non-slip silicone base, and an adjustable strap, it fits securely on car seats, office chairs, and wheelchairs. Its wedge shape raises the seat height at the back for improved posture and lumbar support, making long drives and extended sitting sessions more comfortable. The removable, washable cover and compact vacuum packaging add convenience for everyday use and travel. ## Description Product Description MargGona memory foam heightening seat cushion suit for most car seat and chairs MargGona Car Wedge Seat Cushion for Car and Truck Seat Office Chair Wheelchair - Memory Foam Seat Pad for Sciatica Tailbone Pain Relief Features --The Material: 100% premium Memory Foam with breathable knitting material washable cover. --Size: 19.5 * 16.7 * 2.9 in /50 cm X 43 cm X 7.5 cm(L*W*H) --MargGona Car seat cushion made of 100% premium high-density memory foam features balanced softness colorless and smell-less, has high-density, high-breathable, high elasticity. It will make your car seat much more comfortable. --Our Memory Foam orthopedic seat cushion provides comfort on most Hard Surfaces, office chairs, and wheelchairs. Design for the car seat, office chair, household, and pregnancy. --the wedge shape only raises the height at your buttock, and keeps the original height of the front edge. Thus providing the perfect amount of lumbar support. Package Contents --1 x Car wedge Seat Cushion Kindly remind: Because of the special physical characteristics of memory foam material, our seat wedge cushion may become a little HARD when in a very cold winter. It will become COMFORTABLE after 5 minutes of usage. The car seat cushion will arrive folded but will flatten out with first use. MargGona Car Seat Cusion car seat car cushion coccyx seat cushion MargGona wedge seat cushion is different from other regular cushions, the wedge shape only raises the height at your buttock, and keeps the original height of the front edge. Thus providing the perfect amount of lumbar support and best driving vision. MargGona Car Seat Cusion coccyx seat cushion Have double anti-slip design, insure the cushion stay in place, keep comfort and soft for your coccyx and back. 100% real High-Density Memory Foam Memory foam allows you to sit comfortably longer than usual Strong support & not easy to deform Removable and washable outer cover Polyester mesh fabric outer cover. The cover is washable. The memory foam can not be washed. With attachable strap Our car seat cushion has an extendable strap, so that we can tie the cushion firmly to anychair. You needn’t adjust your cushion again and again anymore like other brands. Silicone non-slip bottom The anti-slip bottom is made of soft silica gel, will not hurt your car seat surface. Ergonomic design U sharp design wedge seat cushion Big enough for large person Review: Just what I was looking for! Ideal. - Bought this for a 5hr car journey for my very uncomfortable bucket-seat Corsa. Was dreading the journey as was worried about pain & discomfort to my back - until I bought this item! So comfortable that I was able to reach my destination completely refreshed and pain-free. Item does what it says and no messing. It didn't move around and stayed nicely in position throughout the duration of the journey. A lot of the wedge seat supports are too narrow in the seat and you find yourself tipping to one side which is uncomfortable, but this one wasn't! Nice and wide and very comfy indeed! Just what I needed. Very impressed. Would buy again. Review: Well worth the upgrade - resolved my aching bum - I'm relatively tall and heavy (17 stone/230lb/110kg and wide-ish backside), so simple/cheap cushions were little use. I sometimes sit for 2-4 hours constantly or only momentarily stand and my, otherwise excellent (and expensive), office chair's ergonomically shaped seat just doesn't have enough padding. With this cushion, I only get the same problem start around 8 hours. Fairly thick at the back, slightly slopes to a thinner front - but no sign of wear despite the chair seat underneath not being flat. Makes it comfier under your thighs on the edge of the seat (than if it was as thick at the front). The base is rubberised and pimpled, to avoid sliding around (no trouble when sitting) and the main cover material/mesh allows lots of flexing, so the material won't stretch out of shape or tear. Well stitched and constructed. I would have bought an even thicker version if available, but many reviewers are obviously lighter than me :) Has a fully adjustable elasticated strap that could stretch a chair's full width, or tighten to the stem of the back rest. Even comes in a smart zippable tube/bag you could reuse or for squeezing this small for travel. ## Features - Car Wedge Seat Cushion for Car Driver Seat Office Chair Wheelchairs Coccyx Support Tailbone Pain Relief Memory Foam Car Seat Cushion Product packaging: vacuum compression, cylindrical bag packaging. - RELIEVE ACHING BACK: Wedge seat cushion that made of 100% premium memory foam features balanced softness and ergonomic coccyx cut-out design, which designed to relieve pressure on lower spine and reduce tailbone pain,but with some people it will not completely eliminate all symptoms. - PROMOTE BETTER SITTING POSTURE : 20 INCHES at the width just fit the car seat, not like other brands with 18 inches at the width are too small for car seat . What's more, 3 INCHES high at the back , our cushion effectively raises your car seat height, thus providing the perfect amount of lumbar support. - Widely Use: Our Memory Foam orthopedic wedge seat cushion provides comfort on most Hard Surfaces, office chair, and wheelchairs.Design for car seat,office use, household and pregnancy. Some customers who often makes long commutes said that this car wedge seat cushion made all the difference from feeling achy after a drive to feeling good. - MORE PRACTICALITY DESIGN: Non-slip rubber bottom and adjustable strap to keeps cushion stable and secure. Will not slide around whilst driving or require. Use 4D breathable mesh knitting material, has high-density, high- breathable, high elasticity. Removable cover is hand washable. NOTE: the car seat cushion will arrive folded but will flatten out with first use. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07SQ1GYH9 | | Age Range Description | Adult | | Best Sellers Rank | 33,666 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 35 in Wheelchair & Mobility Scooter Cushions 220 in Back & Seat Cushions | | Brand | MargGona | | Brand Name | MargGona | | Coin Variety 1 | Memory Foam,Lumbar Support,Seat Cushion | | Colour | Black | | Country Of Origin | China | | Customer Reviews | 4.4 out of 5 stars 2,244 Reviews | | Fabric Type | 100% Premium Memory Foam With 4d Breathable Mesh Knitting Material Cover. | | Fill Material | Memory Foam | | Fill material | Memory Foam | | Item Dimensions L x W | 49L x 43W centimetres | | Item Firmness Description | Soft | | Item Shape | Wedge | | Item Weight | 798 g | | Manufacturer | YJWAN | | Manufacturer Part Number | FBAYJ0004-BK | | Material Features | Breathable, Hypoallergenic | | Material Type | Memory Foam | | Maximum Tilt Angle | 15 Degrees | | Model Name | Yj0004-bk | | Model Number | FBAYJ0004-BK | | Number of Pieces | 1 | | Pattern | Solid | | Product Care Instructions | Hand Wash Only | | Recommended Uses For Product | Sitting | | Shape | Wedge | | Size | one size | | Special Features | Memory | | Special feature | Memory | | Target Use Body Part | Back, Hands | | UPC | 729375291409 | | Unit Count | 1.0 count | ## Product Details - **Brand:** MargGona - **Special feature:** Memory - **Colour:** Black - **Size:** one size - **Fill material:** Memory Foam ## Images ![YJWAN Car Wedge Seat Cushion for Car Driver Seat Office Chair Wheelchairs Coccyx Support Tailbone Pain Relief Memory Foam Seat Cushion - Image 1](https://m.media-amazon.com/images/I/61nQqBG0wnS.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: I constantly have to adjust my sitting position as I feel I've slumped down will this stop this ?** A: I suppose it depends on whether you like a higher driving position. I do and I don’t move about on this cushion. Important to sit as far back in the seat as is possible. **Q: Is the cushion soft?** A: As it is memory foam it forms the shape of whoever sits on it. First impression is that the cushion is firm but after sitting on it for a short while and the cushion has shaped itself around the sitter, the impression is that the cushion is soft but exceedingly comfortable and supportive. I highly recommend this cushion for driving and being a passenger. It is also useful in the home if a little bit of support and comfort is needed when sitting. **Q: Does this add height?** A: The original thickness of this is 7.5--8.5cm, and the height after adding the weight of the human body is 3--5cm. Hope it helps you. **Q: Can this cause submarining in the event of a car crash?** A: Hi, this cushion is held in place by an elasticated strap around the back of the car seat. So any forward movement of the cushion would presumably depend on the strength of the strap and the force of the forward movement. I think only the manufacturer of the cushion could advise on the strength of the strap and its ability to prevent any forward movement. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Just what I was looking for! Ideal. *by S***O on 19 April 2022* Bought this for a 5hr car journey for my very uncomfortable bucket-seat Corsa. Was dreading the journey as was worried about pain & discomfort to my back - until I bought this item! So comfortable that I was able to reach my destination completely refreshed and pain-free. Item does what it says and no messing. It didn't move around and stayed nicely in position throughout the duration of the journey. A lot of the wedge seat supports are too narrow in the seat and you find yourself tipping to one side which is uncomfortable, but this one wasn't! Nice and wide and very comfy indeed! Just what I needed. Very impressed. Would buy again. ### ⭐⭐⭐⭐⭐ Well worth the upgrade - resolved my aching bum *by M***1 on 16 June 2021* I'm relatively tall and heavy (17 stone/230lb/110kg and wide-ish backside), so simple/cheap cushions were little use. I sometimes sit for 2-4 hours constantly or only momentarily stand and my, otherwise excellent (and expensive), office chair's ergonomically shaped seat just doesn't have enough padding. With this cushion, I only get the same problem start around 8 hours. Fairly thick at the back, slightly slopes to a thinner front - but no sign of wear despite the chair seat underneath not being flat. Makes it comfier under your thighs on the edge of the seat (than if it was as thick at the front). The base is rubberised and pimpled, to avoid sliding around (no trouble when sitting) and the main cover material/mesh allows lots of flexing, so the material won't stretch out of shape or tear. Well stitched and constructed. I would have bought an even thicker version if available, but many reviewers are obviously lighter than me :) Has a fully adjustable elasticated strap that could stretch a chair's full width, or tighten to the stem of the back rest. Even comes in a smart zippable tube/bag you could reuse or for squeezing this small for travel. ### ⭐⭐⭐⭐ Works well, very pleased with it *by R***Y on 23 May 2026* Good, wide fit for my office chair, doesn't slip, and holds me in a much better posture. Very nice. ## Frequently Bought Together - YJWAN Car Wedge Seat Cushion for Car Driver Seat Office Chair Wheelchairs Coccyx Support Tailbone Pain Relief Memory Foam Seat Cushion - Livtribe Car Seat Cushion - Memory Foam Car Seat Pad - Sciatica & Lower Back Pain Relief - Car Seat Cushions for Driving - Road Trip Essentials for Drivers(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/205244279-yjwan-car-wedge-seat-cushion-for-car-driver-seat-office](https://www.desertcart.jp/products/205244279-yjwan-car-wedge-seat-cushion-for-car-driver-seat-office) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-11-11*