---
product_id: 183810137
title: "Seat Cushion for Office Chair – Memory Foam Tailbone Pillow Pad for Sitting, Computer, Desk, Chair, Car – Contoured Posture Corrector for Sciatica, Coccyx Back Pain Relief (Black)"
brand: "expansion wellness"
price: "¥5164"
currency: JPY
in_stock: false
reviews_count: 10
url: https://www.desertcart.jp/products/183810137-seat-cushion-for-office-chair-memory-foam-tailbone-pillow-pad
store_origin: JP
region: Japan
---

# Eco-Friendly Foam Machine Washable Ergonomic Design Seat Cushion for Office Chair – Memory Foam Tailbone Pillow Pad for Sitting, Computer, Desk, Chair, Car – Contoured Posture Corrector for Sciatica, Coccyx Back Pain Relief (Black)

**Brand:** expansion wellness
**Price:** ¥5164
**Availability:** ❌ Out of Stock

## Summary

> 🛋️ Sit Smart, Live Better!

## Quick Answers

- **What is this?** Seat Cushion for Office Chair – Memory Foam Tailbone Pillow Pad for Sitting, Computer, Desk, Chair, Car – Contoured Posture Corrector for Sciatica, Coccyx Back Pain Relief (Black) by expansion wellness
- **How much does it cost?** ¥5164 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/183810137-seat-cushion-for-office-chair-memory-foam-tailbone-pillow-pad)

## Best For

- expansion wellness enthusiasts

## Why This Product

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

## Key Features

- • **Portable Design:** Your comfort companion, wherever you go.
- • **Ultimate Comfort:** Transform any chair into a throne of relaxation.
- • **Durable Memory Foam:** Soft yet resilient, built to last.
- • **Non-Slip Technology:** Stay put, no matter how you move.
- • **Stylish & Functional:** Elevate your decor while enjoying comfort.

## Overview

This memory foam seat cushion is designed for those who spend long hours sitting, providing optimal support and comfort. Its contoured U-shape promotes healthy spine alignment, while the non-slip backing ensures stability on any surface. Made from eco-friendly materials, it's both durable and easy to clean with a machine-washable cover.

## Description

Buy Expansion Wellness Seat Cushion for Office Chair – Memory Foam Tailbone Pillow Pad for Sitting, Computer, Desk, Chair, Car – Contoured Posture Corrector for Sciatica, Coccyx Back Pain Relief (Black): Back & Seat Cushions - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Vey comfortable - After losing excessive weight any sitting on a hard chair was to the point of painful. I purchased this seat and received instant relief and comfort upon using it. Very well made. Light weight and easy to transport. Fits a 15x15 seat easily. The anti slip dots on the underneath keeps it in place.
Review: MUST BUY!!!! Tailbone Pain Relief: Embracing Comfort with the Memory Foam Tailbone Pillow Pad - The Memory Foam Tailbone Pillow Pad has been a true savior for my tailbone issues. As someone who struggles with discomfort and pain in the tailbone region, this pillow pad has provided unparalleled relief. The memory foam conforms to the shape of my body, providing optimal support and cushioning for my tailbone. I love how portable and lightweight the pad is, allowing me to use it on various seating surfaces, whether at home, the office, or in the car. This pillow pad has made a remarkable difference in my daily life, allowing me to sit pain-free and focus on my tasks without distraction. If you're dealing with tailbone issues and seeking a solution that truly works, the Memory Foam Tailbone Pillow Pad is a must-have accessory for instant relief and enhanced comfort.

## Features

- Polyester
- SIT MORE COMFORTABLY: If you spend more than 8 hours a day sitting, then this seat pillow is the perfect choice for you. The contoured surface and U shape design of the car seat cushion evenly distributes the weight of your body, offloading the pressure and promotes healthy spine alignment.
- MAKE EVERY CHAIR COMFORTABLE: This orthopedic seat cushion nicely fits in most of the chairs. Take it with you in your car, plane, train, office, or anywhere you have to seat for a long time. The handle on the sides allows for convenient carrying. Great for travelers, office going individuals and pregnant women.
- MICRODOT NON SKID BACKING: The back of this seat cushion has skid-resistant microdots which ensures that it does not shift, move or slip. The non-slip technology offers perfect placement on any type of chair, be it sofas, wheelchair, office chair, train chair.
- HEALTHY & DURABLE MEMORY FOAM: This seat cushion is made with 100% pure and premium quality memory foam that contains no additives or harmful chemicals. The memory foam is soft and enough to conform to individual body shape yet sturdy enough to never go flat. Additionally, the cushion is climate-friendly, making it an eco-conscious choice for your driving comfort needs.
- STYLISH & EASY TO CARE COVER: Don’t worry about your cushion getting soiled or dirty. The removable zipper cover is machine washable, which allows for hassle-free cleanup. And not to forget, the fashionable style keeps décor up-to-date.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0828N4WTX |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #281,311 in Office Products ( See Top 100 in Office Products ) #1,177 in Back Cushions & Seat Cushions |
| Brand | Expansion Wellness |
| Brand Name | Expansion Wellness |
| Coin Variety 1 | Memory Foam,Seat Pillow,Seat Cushion |
| Color | Black |
| Customer Reviews | 4.3 out of 5 stars 6,794 Reviews |
| Fabric Type | Polyester |
| Fill Material | Memory Foam |
| Item Dimensions L x W | 17"L x 14"W |
| Item Firmness Description | Soft |
| Item Type Name | Tailbone Pillow Pad |
| Item Weight | 1.08 Pounds |
| Manufacturer | Expansion Wellness |
| Manufacturer Part Number | 3W-9BHO-WF4J |
| Material Type | Memory Foam |
| Material Type Free | Chemical Free |
| Model Name | 3W-9BHO-WF4J |
| Model Number | 3W-9BHO-WF4J |
| Number of Pieces | 1 |
| Pattern | Solid |
| Product Care Instructions | Machine Wash |
| Recommended Uses For Product | Sitting |
| Shape | Semicircular |
| Special Feature | Durable |
| Special Features | Durable |
| Target Use Body Part | Body |
| UPC | 685364198848 667619860380 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Expansion Wellness
- **Color:** Black
- **Fill Material:** Memory Foam
- **Shape:** Semicircular
- **Special Feature:** Durable

## Images

![Seat Cushion for Office Chair – Memory Foam Tailbone Pillow Pad for Sitting, Computer, Desk, Chair, Car – Contoured Posture Corrector for Sciatica, Coccyx Back Pain Relief (Black) - Image 1](https://m.media-amazon.com/images/I/71e0w2NT6pL.jpg)
![Seat Cushion for Office Chair – Memory Foam Tailbone Pillow Pad for Sitting, Computer, Desk, Chair, Car – Contoured Posture Corrector for Sciatica, Coccyx Back Pain Relief (Black) - Image 2](https://m.media-amazon.com/images/I/71uzZvTelyL.jpg)
![Seat Cushion for Office Chair – Memory Foam Tailbone Pillow Pad for Sitting, Computer, Desk, Chair, Car – Contoured Posture Corrector for Sciatica, Coccyx Back Pain Relief (Black) - Image 3](https://m.media-amazon.com/images/I/81o+eYSMZlL.jpg)
![Seat Cushion for Office Chair – Memory Foam Tailbone Pillow Pad for Sitting, Computer, Desk, Chair, Car – Contoured Posture Corrector for Sciatica, Coccyx Back Pain Relief (Black) - Image 4](https://m.media-amazon.com/images/I/71--PfcT5ZL.jpg)
![Seat Cushion for Office Chair – Memory Foam Tailbone Pillow Pad for Sitting, Computer, Desk, Chair, Car – Contoured Posture Corrector for Sciatica, Coccyx Back Pain Relief (Black) - Image 5](https://m.media-amazon.com/images/I/81i3dTQnJJL.jpg)

## Questions & Answers

**Q: Is this the best thing for an airplane seat?**
A: Yes, definitely works great for airplane seats.

**Q: Where is this seat cushion made / manufactured?!?**
A: They are made in China, however the quality is great.

**Q: What is the size dimensions and height of the cushion ?**
A: The cushion is approximately 18 inches wide and 14 inches front to back.  It ranges from 1 1/2 to 2 inches deep.  I really like mine much gentler on old bones than my wooden chairs.

**Q: hi is there 2 cushions black and grey, because it does not show thta in discription**
A: Mine was a single, I think the grey is on one side and the black on the other, unless they changed things since I bought mine.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Vey comfortable
*by M***E on May 17, 2025*

After losing excessive weight any sitting on a hard chair was to the point of painful. I purchased this seat and received instant relief and comfort upon using it. Very well made. Light weight and easy to transport. Fits a 15x15 seat easily. The anti slip dots on the underneath keeps it in place.

### ⭐⭐⭐⭐⭐ MUST BUY!!!! Tailbone Pain Relief: Embracing Comfort with the Memory Foam Tailbone Pillow Pad
*by H***. on July 24, 2023*

The Memory Foam Tailbone Pillow Pad has been a true savior for my tailbone issues. As someone who struggles with discomfort and pain in the tailbone region, this pillow pad has provided unparalleled relief. The memory foam conforms to the shape of my body, providing optimal support and cushioning for my tailbone. I love how portable and lightweight the pad is, allowing me to use it on various seating surfaces, whether at home, the office, or in the car. This pillow pad has made a remarkable difference in my daily life, allowing me to sit pain-free and focus on my tasks without distraction. If you're dealing with tailbone issues and seeking a solution that truly works, the Memory Foam Tailbone Pillow Pad is a must-have accessory for instant relief and enhanced comfort.

### ⭐⭐⭐⭐ good but soft
*by L***Y on October 10, 2023*

It is very comfy and helps with an injury I have had. It is very soft though and when I sit, it is basically squished down by half its height.

## Frequently Bought Together

- Expansion Wellness Seat Cushion for Office Chair – Memory Foam Tailbone Pillow Pad for Sitting, Computer, Desk, Chair, Car – Contoured Posture Corrector for Sciatica, Coccyx Back Pain Relief (Black)
- TushGuard Seat Cushion - Memory Foam Cushion for Office Chair, Car Seat, Airplane, Bleacher - Sciatica & Hip & Coccyx Pain Relief Desk Chair Cushion for Long Sitting Office Workers, Car Drivers
- Memory Foam Seat Chair Cushion for Relieves Back Sciatica Pain Tailbone Pain Coccyx Degenerating Disc Orthopedic Osteoarthritis Prostate Cushion Low Back Pain Cushion Hip Shaping (Dark Gray)

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**Shop now:** [https://www.desertcart.jp/products/183810137-seat-cushion-for-office-chair-memory-foam-tailbone-pillow-pad](https://www.desertcart.jp/products/183810137-seat-cushion-for-office-chair-memory-foam-tailbone-pillow-pad)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-07-07*