---
product_id: 745758046
title: "BlissTrends Thick Seat Cushion for Office Chair & Car Seat, XL, LightGrey"
brand: "blisstrends"
price: "¥18458"
currency: JPY
in_stock: true
reviews_count: 13
category: "Bliss Trends"
url: https://www.desertcart.jp/products/745758046-blisstrends-thick-seat-cushion-for-office-chair-and-car-seat
store_origin: JP
region: Japan
---

# Ergonomic tailbone & sciatica relief 3.9" thick medium-firm memory foam 18.11"x16.14"x5.2" XL size BlissTrends Thick Seat Cushion for Office Chair & Car Seat, XL, LightGrey

**Brand:** blisstrends
**Price:** ¥18458
**Availability:** ✅ In Stock

## Summary

> 💺 Upgrade your sit game — comfort that means business!

## Quick Answers

- **What is this?** BlissTrends Thick Seat Cushion for Office Chair & Car Seat, XL, LightGrey by blisstrends
- **How much does it cost?** ¥18458 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/745758046-blisstrends-thick-seat-cushion-for-office-chair-and-car-seat)

## Best For

- blisstrends enthusiasts

## Why This Product

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

## Key Features

- • **Premium Memory Foam:** High-density, medium-firm memory foam adapts to your body, maintaining shape & comfort over time
- • **Ergonomic XL Comfort:** Generous 18x16 inch size with 5.2" thickness cradles hips & thighs for all-day support
- • **Luxury Meets Practicality:** Velvet cover with elegant embroidery, removable & machine washable for effortless upkeep
- • **Universal Fit & Stability:** Non-slip bottom keeps cushion firmly in place on office chairs, cars, wheelchairs & more
- • **Tailbone & Sciatica Savior:** Unique cocked edge design targets pressure points to reduce pain and improve posture

## Overview

The BlissTrends Thick Seat Cushion XL combines 3.9" medium-firm memory foam with an ergonomic design to relieve tailbone, sciatica, and back pain. Sized at 18.11" x 16.14" x 5.2", it fits most chairs and features a premium removable velvet cover with anti-slip backing. Perfect for professionals seeking all-day comfort and posture support at work, in the car, or on the go.

## Description

desertcart.com: BlissTrends Thick Seat Cushion for Office Chair & Car Seat, XL, LightGrey | Memory Foam with Removable Cover, Ergonomic Tailbone & Sciatica Support for Pressure Relief and Long Sitting, 3.9" Thick : Baby

Review: Nicely shaped, comfortable, just the right height. - Good quality, comfortable. Fits nicely into several different chairs that I have. Well made, holds shape firmly yet still very comfortable. It's a perfect heught. It keeps me from slouching and relieves back pain caused ny hours of sitting at the desk. I move it when I change my seating, so it's very portable. There's no fasteners or anything... just pick it up and plop it down wherever you need it. I'm quite happy with this. I've had it for quite awhile and it's still as firm as the day I bought it. It didn't flatten down over time like some that I've had on the post.
Review: Great purchase for broken tailbone - I recently broke my tailbone and couldn’t sit in just regular chairs, bleachers, or even the seat in my car. I am a mom of 2 that are both in sports. I am always on the go in my car, at a sporting event on hard bleachers or chairs. I had to have something I could sit on until my tailbone is healed because mom’s don’t have time to be down haha. This cushion has been a life saver. I think I actually may order a second one so I can leave one in the house and one in my car. I opted for the size Large but I was concerned it wouldn’t be thick enough. I am a plus sized gal. 5’4 205 lbs. The size large has worked perfectly for me. It doesn’t stay fully firm after you sit on it for some time, but it also doesn’t go flat either if that makes sense. It’s a good medium thickness that still supplies cushion even if you’re sitting on it for extended periods of time. I’ve used mine every single day for about 3 weeks and it’s still in perfect condition so it is durable. I am in unbearable pain if I sit without cushion, so this cushion allows me to be able to sit without pain. I feel like it has helped eased some preexisting back pain as well. It isn’t hot at all, I feel like it has good ventilation to it. Very convenient and easy to use and travel with. A very life saving purchase for me!

## Features

- [Thick Cushion] The seat cushion measures 18.11" x 16.14" x 5.2" and includes about 3.9" center thickness medium firm memory foam gently conforms to your body, giving you a comfortable experience. The shape of the chair cushion is ergonomically designed to hold up the thighs and hips, effectively helping to alleviate the discomfort caused by sitting for long periods of time
- [Advanced Design] Our seat cushion is made of high-density memory foam. Super velvet cover with high quality embroidery for a premium look. The cover is equipped with a high-quality smooth zipper and is removable and machine washable. The bottom of the seat cushion has a special non-slip design, so you don't have to worry about the cushion sliding
- [Tailbone Pain Relief] The seat cushion's unique cocked edge design provides adequate support for the legs and hips, effectively reducing sciatica, tailbone, back pain, leg numbness and hip pain. In addition, this thick chair cushion also helps to improve posture and relieve sedentary fatigue
- [Practical Presents] The seat cushion offers moderate support and firmness, not easily dented, and suitable for sedentary people. Perfect as a practical gift for your family, friends, bosses, clients and colleagues
- [Suitable For Most Chairs] This seat cushion is thick and is sized for most chairs, perfect for office, home, travel, game stands, car seats or wheelchairs

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0F4DF2WJG |
| Age Range Description | Adult |
| Best Sellers Rank | #220 in Automotive ( See Top 100 in Automotive ) #2 in Automotive Seat Cushions |
| Brand | BlissTrends |
| Brand Name | BlissTrends |
| Color | Light Grey |
| Customer Reviews | 4.4 out of 5 stars 8,982 Reviews |
| Fabric Type | 100% Polyurethane Foam & 100% Polyester |
| Fill Material | Polyurethane (PU) |
| Item Firmness Description | Medium Firm |
| Item Highlight | Memory Foam with Removable Cover, Ergonomic Tailbone & Sciatica Support for Pressure Relief and Long Sitting, 3.9" Thick |
| Item Weight | 1.36 kg |
| Manufacturer | BlissTrends |
| Manufacturer Part Number | MPNBTR0002-LGEH |
| Material Type | Polyester, Polyurethane Foam |
| Model Name | BTR0002-LGEH |
| Model Number | MPNBTR0002-LGEH |
| Number of Pieces | 1 |
| Product Care Instructions | Machine Wash, Memory foam seat cushions feel firmer in colder temperatures and soften slightly as the temperature rises. We recommend sitting on the cushion for a few extra minutes when you first use it to allow the memory foam to warm up., The inner core is not washable |
| Recommended Uses For Product | Driving, Reading, Sitting, Studying, Traveling |
| Shape | Semicircular |
| Size | X-Large |
| Special Feature | Anti-Slip, Breathable, Removable, Removable Cover |
| Special Features | Anti-Slip, Breathable, Removable, Removable Cover |
| Target Use Body Part | Feet, Legs, Whole Body |
| Unit Count | 1 Count |

## Product Details

- **Brand:** BlissTrends
- **Color:** Light Grey
- **Fill Material:** Polyurethane (PU)
- **Size:** X-Large
- **Special Feature:** Bagless

## Images

![BlissTrends Thick Seat Cushion for Office Chair & Car Seat, XL, LightGrey - Image 1](https://m.media-amazon.com/images/I/71FFV5btbRL.jpg)
![BlissTrends Thick Seat Cushion for Office Chair & Car Seat, XL, LightGrey - Image 2](https://m.media-amazon.com/images/I/71AVRApEaXL.jpg)
![BlissTrends Thick Seat Cushion for Office Chair & Car Seat, XL, LightGrey - Image 3](https://m.media-amazon.com/images/I/71854hFvD1L.jpg)
![BlissTrends Thick Seat Cushion for Office Chair & Car Seat, XL, LightGrey - Image 4](https://m.media-amazon.com/images/I/71BMqyw+k4L.jpg)
![BlissTrends Thick Seat Cushion for Office Chair & Car Seat, XL, LightGrey - Image 5](https://m.media-amazon.com/images/I/713d6aSHtnL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nicely shaped, comfortable, just the right height.
*by J***E on September 9, 2026*

Good quality, comfortable. Fits nicely into several different chairs that I have. Well made, holds shape firmly yet still very comfortable. It's a perfect heught. It keeps me from slouching and relieves back pain caused ny hours of sitting at the desk. I move it when I change my seating, so it's very portable. There's no fasteners or anything... just pick it up and plop it down wherever you need it. I'm quite happy with this. I've had it for quite awhile and it's still as firm as the day I bought it. It didn't flatten down over time like some that I've had on the post.

### ⭐⭐⭐⭐⭐ Great purchase for broken tailbone
*by A***L on March 12, 2026*

I recently broke my tailbone and couldn’t sit in just regular chairs, bleachers, or even the seat in my car. I am a mom of 2 that are both in sports. I am always on the go in my car, at a sporting event on hard bleachers or chairs. I had to have something I could sit on until my tailbone is healed because mom’s don’t have time to be down haha. This cushion has been a life saver. I think I actually may order a second one so I can leave one in the house and one in my car. I opted for the size Large but I was concerned it wouldn’t be thick enough. I am a plus sized gal. 5’4 205 lbs. The size large has worked perfectly for me. It doesn’t stay fully firm after you sit on it for some time, but it also doesn’t go flat either if that makes sense. It’s a good medium thickness that still supplies cushion even if you’re sitting on it for extended periods of time. I’ve used mine every single day for about 3 weeks and it’s still in perfect condition so it is durable. I am in unbearable pain if I sit without cushion, so this cushion allows me to be able to sit without pain. I feel like it has helped eased some preexisting back pain as well. It isn’t hot at all, I feel like it has good ventilation to it. Very convenient and easy to use and travel with. A very life saving purchase for me!

### ⭐⭐⭐⭐ Comfortable and supportive for long term sitting
*by S***. on August 26, 2026*

I’ve been really happy with the BlissTrends Memory Foam Seat. It’s comfortable enough for long periods of sitting, while still giving me the support I need. The cushion stays securely in place on both my office chair and car seat, which makes it easy to use throughout the day. I’ve also noticed less lower body discomfort when I’m sitting for extended periods. Overall, it’s worked very well for me, and I’d happily purchase it again. I’m giving it 4 stars because the cushion is quite firm, so I have to lower myself onto it with a little extra care rather than simply dropping into the seat.

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-29*