---
product_id: 661031611
title: "Seat Cushion, XL Large Memory Foam Cushion for /Office Chair/Car/Wheelchair | Ergonomic Cushions Pad Pillow for Pressure Relief Sciatica & Pain Relief for Long Sitting"
brand: "cjacsoc"
price: "¥30050"
currency: JPY
in_stock: true
reviews_count: 10
category: "Cjacsoc"
url: https://www.desertcart.jp/products/661031611-seat-cushion-xl-large-memory-foam-cushion-for-office-chair
store_origin: JP
region: Japan
---

# XL 19x16 inch full seat coverage Ergonomic U-shape for tailbone pain relief 100% premium memory foam comfort Seat Cushion, XL Large Memory Foam Cushion for /Office Chair/Car/Wheelchair | Ergonomic Cushions Pad Pillow for Pressure Relief Sciatica & Pain Relief for Long Sitting

**Brand:** cjacsoc
**Price:** ¥30050
**Availability:** ✅ In Stock

## Summary

> 🪑 Elevate your seat game—comfort that works as hard as you do!

## Quick Answers

- **What is this?** Seat Cushion, XL Large Memory Foam Cushion for /Office Chair/Car/Wheelchair | Ergonomic Cushions Pad Pillow for Pressure Relief Sciatica & Pain Relief for Long Sitting by cjacsoc
- **How much does it cost?** ¥30050 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/661031611-seat-cushion-xl-large-memory-foam-cushion-for-office-chair)

## Best For

- cjacsoc enthusiasts

## Why This Product

- Trusted cjacsoc brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **All-Day Pain Relief:** Special U-shaped design targets tailbone, hips, and sciatica for lasting comfort during long hours.
- • **Slip-Free Stability:** Non-slip backing locks cushion in place, so you stay steady and focused all day long.
- • **Universal Versatility:** Perfect for office chairs, cars, wheelchairs, and gaming setups—comfort wherever you sit.
- • **Ultimate XL Comfort Fit:** Generous 19x16 inch size for full-seat ergonomic support—no more cramped seating.
- • **Cool & Clean Convenience:** Breathable, machine-washable cover keeps you fresh and cushion pristine with zero hassle.

## Overview

This XL memory foam seat cushion (19x16 inches) is expertly designed to provide ergonomic support and relieve tailbone, hip, and back pain. Its breathable, washable cover and non-slip base make it ideal for office chairs, cars, wheelchairs, and more—perfect for professionals seeking all-day comfort and improved posture.

## Description

Buy Seat Cushion, XL Large Memory Foam Cushion for /Office Chair/Car/Wheelchair | Ergonomic Cushions Pad Pillow for Pressure Relief Sciatica & Pain Relief for Long Sitting: Back & Seat Cushions - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great Cushion for Long Sitting! - I purchased this seat cushion and have been very happy with it. The memory foam is firm but comfortable, and it provides excellent support when sitting for long periods. I use it while studying and working, and it helps reduce pressure on my lower back and tailbone. The cushion keeps its shape well, does not flatten easily, and the cover is soft and easy to clean. It fits nicely on my chair and makes sitting much more comfortable. I would definitely recommend this cushion to anyone who spends many hours sitting at a desk, studying, driving, or working from home. Great value for the price!
Review: Great comfort for all-day desk work - I got this when I'd bruised my tailbone gardening. It was perfect for reducing pain while seated. Now it's become my everyday desk chair cushion. It's super soft, great for long work sessions. It's held up well, kept its shape, still looks and works like new.

## Features

- LARGE SIZE & FULL SEAT COVERAGE: The XL size (19 inch x 16 inch) ensures full support, Our memory foam cushion is specially designed by ergonomic experts. The "U"-shaped hollow design fits the human body contours to bring you the ultimate comfort experience, reduces fatigue caused by long-term sitting, and enhances work-life balance.
- 100 PERCENT MEMORY FOAM CUSHION FOR CAR: Our cushion is universal and perfect for office chairs, car seats, airplane seats, gaming chairs, stands, and wheelchairs. The bottom is non-slip to ensure stability and prevent slipping. Instantly enhance the comfort of your favorite seat.
- TAILBONE PAIN RELIEF: The unique warped edge design of the cushion provides adequate support for the legs and hips, effectively relieving sciatica, coccyx, back pain, leg numbness, and hip pain. In addition, this thick chair cushion also helps improve posture and relieve fatigue from sitting for a long time.
- SOFT & BREATHABLE WASHABLE COVER: This cushion comes with a soft, highly‑breathable outer cover that promotes good air circulation to keep you cool while sitting. The removable cover is machine‑washable for effortless daily cleaning and maintenance. Built‑in non‑slip backing firmly locks the cushion in position, preventing unwanted sliding during use for steady, worry‑free comfort.
- QUALITY‑BACKED AFTER‑SALES SUPPORT: We take full confidence in the quality of our seat cushions. Every cushion has gone through strict quality inspection before shipment. Should you encounter any product‑related issues, our dedicated customer‑service team will offer you a quick and satisfying solution. Buy with total peace of mind.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DDKMYL35 |
| Age Range Description | Adult |
| Best Sellers Rank | #16,466 in Office Products ( See Top 100 in Office Products ) #92 in Back Cushions & Seat Cushions |
| Brand | CJACSOC |
| Brand Name | CJACSOC |
| Color | Black |
| Customer Reviews | 4.3 out of 5 stars 1,573 Reviews |
| Fabric Type | 60% Cotton/ 40% Polyester |
| Fill Material | Memory Foam |
| Item Dimensions L x W | 19"L x 17"W |
| Item Weight | 1 kg |
| Manufacturer | CJACSOC |
| Manufacturer Part Number | CJACSOC |
| Material Type | Memory Foam |
| Product Care Instructions | Machine Wash |
| Recommended Uses For Product | Sitting |
| Shape | Semicircular |
| Size | 19*16*4.5 inch |
| Special Feature | Pressure Relief Design |
| Special Features | Pressure Relief Design |
| Target Use Body Part | Hip |
| UPC | 774049049510 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** CJACSOC
- **Color:** Black
- **Fill Material:** Memory Foam
- **Size:** 19*16*4.5 inch
- **Special Feature:** Pressure Relief Design

## Images

![Seat Cushion, XL Large Memory Foam Cushion for /Office Chair/Car/Wheelchair | Ergonomic Cushions Pad Pillow for Pressure Relief Sciatica & Pain Relief for Long Sitting - Image 1](https://m.media-amazon.com/images/I/81Dkqt2x+qL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Cushion for Long Sitting!
*by S***A on June 20, 2026*

I purchased this seat cushion and have been very happy with it. The memory foam is firm but comfortable, and it provides excellent support when sitting for long periods. I use it while studying and working, and it helps reduce pressure on my lower back and tailbone. The cushion keeps its shape well, does not flatten easily, and the cover is soft and easy to clean. It fits nicely on my chair and makes sitting much more comfortable. I would definitely recommend this cushion to anyone who spends many hours sitting at a desk, studying, driving, or working from home. Great value for the price!

### ⭐⭐⭐⭐⭐ Great comfort for all-day desk work
*by J***S on August 7, 2026*

I got this when I'd bruised my tailbone gardening. It was perfect for reducing pain while seated. Now it's become my everyday desk chair cushion. It's super soft, great for long work sessions. It's held up well, kept its shape, still looks and works like new.

### ⭐⭐⭐⭐⭐ Magic Booty Cushion
*by S***C on February 18, 2025*

I am absolutely blown away by the **CJACSOC Extra Large Memory Foam Seat Cushion**! This cushion is an absolute game-changer for anyone who deals with discomfort from sitting for long periods—whether it's at work, in the car, or during travel. First of all, the size is PERFECT. It’s extra large, which gives fantastic coverage and support for your entire seat area. No more worrying about feeling cramped or unsupported. The memory foam is incredibly high quality; it molds to your body beautifully, offering just the right amount of firmness while still being plush and soft. It helps distribute my weight evenly and provides constant comfort throughout the day. The cushion also provides excellent lumbar support, which has drastically reduced the lower back pain I used to get after long hours of sitting. It feels like a custom fit every time I sit down. Whether I’m working from home or sitting for a long car ride, I can’t imagine going without it now. Another standout feature is the **non-slip cover**, which keeps the cushion securely in place no matter how much you move. I also love the breathable, soft fabric, which is gentle on the skin but still durable and easy to clean. Honestly, the **CJACSOC Extra Large Memory Foam Seat Cushion** has taken my comfort to the next level. If you’re looking for a seat cushion that will last, deliver real results, and make sitting a whole lot more enjoyable, this is *the one*! It’s worth every penny, and I couldn’t recommend it more!

## Frequently Bought Together

- CJACSOC Seat Cushion, Extra Large Memory Foam Cushion for Office Chair Cushions, Ergonomic Cushions Pad Pillow for Pressure Relief Sciatica & Pain Relief for Long Sitting
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- 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

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**Shop now:** [https://www.desertcart.jp/products/661031611-seat-cushion-xl-large-memory-foam-cushion-for-office-chair](https://www.desertcart.jp/products/661031611-seat-cushion-xl-large-memory-foam-cushion-for-office-chair)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-05*