---
product_id: 506373937
title: "SAIREIDER Seat Cushion and Lumbar Support Pillow for Office Chair, Memory Foam Car Seat Cushions Back Support Pillows, Help Relieve Pain of Back, Lumbar, Tailbone and Sciatic Nerve（Black）"
brand: "saireider"
price: "¥14260"
currency: JPY
in_stock: true
reviews_count: 10
category: "Saireider"
url: https://www.desertcart.jp/products/506373937-saireider-seat-cushion-and-lumbar-support-pillow-for-office-chair
store_origin: JP
region: Japan
---

# Non-slip base & adjustable straps 100% pure high-density memory foam U-shaped coccyx cutout for pressure relief SAIREIDER Seat Cushion and Lumbar Support Pillow for Office Chair, Memory Foam Car Seat Cushions Back Support Pillows, Help Relieve Pain of Back, Lumbar, Tailbone and Sciatic Nerve（Black）

**Brand:** saireider
**Price:** ¥14260
**Availability:** ✅ In Stock

## Summary

> 💺 Upgrade your sit game — comfort that works as hard as you do!

## Quick Answers

- **What is this?** SAIREIDER Seat Cushion and Lumbar Support Pillow for Office Chair, Memory Foam Car Seat Cushions Back Support Pillows, Help Relieve Pain of Back, Lumbar, Tailbone and Sciatic Nerve（Black） by saireider
- **How much does it cost?** ¥14260 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/506373937-saireider-seat-cushion-and-lumbar-support-pillow-for-office-chair)

## Best For

- saireider enthusiasts

## Why This Product

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

## Key Features

- • **Secure & Stable Fit:** Non-slip bottom and dual adjustable straps keep cushions perfectly positioned on any chair.
- • **Ergonomic Tailbone Relief:** U-shaped cutout suspends tailbone, easing pressure and sciatica pain during long sits.
- • **Full-Spine Lumbar Contour:** Anatomically designed pillow supports upper, middle, and lower back for improved posture.
- • **Versatile Comfort Anywhere:** Ideal for office, car, gaming, or airplane seats—comfort that travels with you.
- • **Premium Memory Foam Support:** SGS-certified high-density foam that quickly regains shape and cushions all-day comfort.

## Overview

The SAIREIDER Seat Cushion and Lumbar Support Pillow set combines ergonomic design with premium memory foam to relieve back, tailbone, and sciatic nerve pain. Featuring a U-shaped coccyx cutout and anatomically contoured lumbar support, it promotes healthy posture and reduces fatigue during extended sitting. Non-slip and adjustable for secure placement, this versatile cushion duo fits office chairs, cars, gaming seats, and more, making it a must-have for professionals seeking all-day comfort and pain relief.

## Description

Buy SAIREIDER Seat Cushion and Lumbar Support Pillow for Office Chair, Memory Foam Car Seat Cushions Back Support Pillows, Help Relieve Pain of Back, Lumbar, Tailbone and Sciatic Nerve（Black）: Back & Seat Cushions - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: ⭐ Game-Changer for Long Hours at a Desk — Comfort That Truly Makes a Difference ⭐ - As a disabled veteran who works from home, comfort and proper support are not just preferences for me — they are necessities. After spending long hours sitting at my desk every day, I quickly realized that the small lumbar support pillow that came with my gaming chair simply wasn’t enough. That’s what led me to purchase the SAIREIDER Seat Cushion and Lumbar Support Pillow, and I’m genuinely impressed with how much of a difference it has made. The back cushion alone was already a noticeable step up in support. When paired with the lumbar pillow that came with my chair, the combination turned out to be perfect. My lower back feels properly supported now instead of strained, and my posture has improved during long work sessions. However, the real hero of this set is the seat cushion. The memory foam “butt cushion” was something I didn’t realize I needed this badly until I started using it. It provides excellent pressure relief, doesn’t flatten out, and makes sitting for hours at a time far more tolerable and comfortable. Overall, this cushion set has significantly improved my daily work-from-home experience. It’s well-made, supportive, and clearly designed for people who spend extended time seated — especially those who need extra comfort due to physical limitations. If you work long hours at a desk, use a gaming or office chair that lacks proper support, or simply want to reduce discomfort while sitting, I highly recommend this product. It has been a worthwhile investment in comfort and daily quality of life.
Review: Works well to reduce discomfort & fatigue when sitting for long periods of time - This set makes it easier for me to sit 8 - 10 hours/day while working. The back support makes it easier to maintain proper posture, which helps reduce muscle strain and fatigue in the lower back. The seat cushion makes it easier to sit for long periods of time by providing more comfortable padded support that my current computer chair doesn't have. This set also works great on wooden kitchen chairs that have no seat cushions. Seems very well made and durable and is worth every penny. Highly recommend!

## Features

- 【Ergonomic Designs】*Our coccyx seat cushion adopt the design of "u" shaped cutout that keeps your tailbone suspended above hard seat surface, relieving pressure all along the back, tailbone and legs. It helps relieve sciatica and promote healthy posture.
- *The lumbar support pillow is anatomically shaped to contour to the natural curve of your spine, giving you more support than ordinary back cushions. What's more, it supports the upper, middle, and lower back to effectively relieves back pain and fatigue after long sitting hours.
- 【Premium Material】Our chair cushion and lumbar pillow are made of high density 100% pure memory foam( SGS certified environmental protection material), which could restore its shape quickly after long sitting and never be flattened! It could effectively support your body and disperse pressure while sitting for a long periods.
- 【Thoughtful Designs】There's non- slip bottom on our butt pillow which could keep the cushion stay in place eventhough you move frequently on seat. The lumbar support pillow has dual adjustable elastic straps for secure placement on a variety of chairs. Removable and easy to clean covers keep your seat cushion and backrest always clean.
- 【Wide Application】Our seat cushion and lumbar support pillow set is very applicable for office chair, home chair, car seat, gaming chair, airplane seat, wheelchair and so on. It's effective to release pressure and offer comfort. It’s perfect for office workers, drivers, teachers, students, people who like reading, etc. This would be a healthy gift with love for Christmas, New Year, birthday, mother's day, father's day, job promotion.
- 【Risk-free Try】We believe that you would like our seat cushion and lumbar support set because its designs, quality and price are all thoughtful for you. But if you meet any problem or feel unsatisfied while using it, please feel free to contact us and we would provide a 100% satisfactory solution for you in 24 hours. Customer satisfaction is our top priority.
- 【kindly reminder】In order to maintain the cleanliness of the product, we use vacuum compression packaging. Some products require a period of time (usually a few minutes to 24 hours) to rebound due to the long compression time, which is a normal situation. Please do not worry

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BLHWZ3VJ |
| Age Range (Description) | Adult |
| Best Sellers Rank | #6,827 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #6 in Lumbar Pillows |
| Brand | SAIREIDER |
| Color | Seat Cushion&lumbar Pillow-black |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,417) |
| Date First Available | January 5, 2023 |
| Fabric Type | 100% Memory Foam |
| Fill Material | Memory Foam |
| Item Firmness Description | Soft |
| Item Weight | 3.2 pounds |
| Item model number | Seat Cushion &Back Support-LS01b |
| Manufacturer | SAIREIDER |
| Material | Memory Foam |
| Model Name | Seat Cushion and Back Support Pillow |
| Number of Pieces | 1 |
| Pattern | Solid |
| Product Care Instructions | Machine Wash |
| Product Dimensions | 13.8"L x 12"W |
| Recommended Uses For Product | Car |
| Shape | Rectangular |
| Size | Universal dimensions |
| Special Feature | Adjustable |
| UPC | 342976985661 |
| Unit Count | 1 Count |
| Use for | Back, Legs |
| Variety | Lumbar Support,Memory Foam,Seat Cushion |

## Product Details

- **Brand:** SAIREIDER
- **Color:** Seat Cushion&lumbar Pillow-black
- **Fill Material:** Memory Foam
- **Size:** Universal dimensions
- **Special Feature:** Adjustable

## Images

![SAIREIDER Seat Cushion and Lumbar Support Pillow for Office Chair, Memory Foam Car Seat Cushions Back Support Pillows, Help Relieve Pain of Back, Lumbar, Tailbone and Sciatic Nerve（Black） - Image 1](https://m.media-amazon.com/images/I/61Y15u9wz0L.jpg)

## Questions & Answers

**Q: How long do I need to let this “rise” out of the packaging before I use it?**
A: The moment you cut into the plastic, it should rise. The package reminds me of the vacuum-seal products on the market.

**Q: Is it to soft that it won’t support your tailbone?**
A: It has good support, however if you are tall it raises you up a bit. I use it on trips longer than 2 hours and find it helps.

**Q: I'm a large man at 300 lbs?    Will it work or will I just pancake it?**
A: It's a little more than straight mem foam so it's not too bad, I am 300+ lbs as well and I use it in the car , seems to work well....

**Q: What is the feel of the cover fabric?**
A: Soft and skin friendly

## Customer Reviews

### ⭐⭐⭐⭐⭐ ⭐ Game-Changer for Long Hours at a Desk — Comfort That Truly Makes a Difference ⭐
*by S***7 on December 15, 2025*

As a disabled veteran who works from home, comfort and proper support are not just preferences for me — they are necessities. After spending long hours sitting at my desk every day, I quickly realized that the small lumbar support pillow that came with my gaming chair simply wasn’t enough. That’s what led me to purchase the SAIREIDER Seat Cushion and Lumbar Support Pillow, and I’m genuinely impressed with how much of a difference it has made. The back cushion alone was already a noticeable step up in support. When paired with the lumbar pillow that came with my chair, the combination turned out to be perfect. My lower back feels properly supported now instead of strained, and my posture has improved during long work sessions. However, the real hero of this set is the seat cushion. The memory foam “butt cushion” was something I didn’t realize I needed this badly until I started using it. It provides excellent pressure relief, doesn’t flatten out, and makes sitting for hours at a time far more tolerable and comfortable. Overall, this cushion set has significantly improved my daily work-from-home experience. It’s well-made, supportive, and clearly designed for people who spend extended time seated — especially those who need extra comfort due to physical limitations. If you work long hours at a desk, use a gaming or office chair that lacks proper support, or simply want to reduce discomfort while sitting, I highly recommend this product. It has been a worthwhile investment in comfort and daily quality of life.

### ⭐⭐⭐⭐⭐ Works well to reduce discomfort & fatigue when sitting for long periods of time
*by S***R on September 8, 2025*

This set makes it easier for me to sit 8 - 10 hours/day while working. The back support makes it easier to maintain proper posture, which helps reduce muscle strain and fatigue in the lower back. The seat cushion makes it easier to sit for long periods of time by providing more comfortable padded support that my current computer chair doesn't have. This set also works great on wooden kitchen chairs that have no seat cushions. Seems very well made and durable and is worth every penny. Highly recommend!

### ⭐⭐⭐⭐ Great Comfort, But Adjustment Was Tricky: SAIREIDER Lumbar Support Pillow
*by M***Y on January 31, 2025*

I recently purchased the SAIREIDER Comfortable Lumbar Support Pillow for my office chair and car, and overall, it’s been a great addition to my daily comfort, but there are a few things worth mentioning. First, the pillow itself is fantastic. The memory foam provides excellent support for my lower back, which is exactly what I needed after long hours of sitting at my desk or during long car rides. It’s firm enough to give solid lumbar support but still soft enough to feel comfortable against your back. The material is breathable, so it doesn't get too hot like some other support pillows can. One of the standout features is how well it fits in my car. It contours to the seat nicely, providing much-needed relief on longer drives. My back feels so much better after using it for just a short while. I also love that it helps improve my posture by keeping my spine in a better alignment, which is a huge plus for both office work and travel. That said, I had a bit of trouble adjusting it to fit perfectly in my car seat. The straps are adjustable, but I found it challenging to get the pillow in the ideal position at first. It took some trial and error to figure out where it felt just right. Once I got it sorted, though, it worked wonderfully. Overall, I’m really happy with the comfort it provides. It’s been a game changer for both my office chair and car seat. If you can get past the slight adjustment issues, it’s definitely worth it for the back support it gives!

## Frequently Bought Together

- SAIREIDER Seat Cushion and Lumbar Support Pillow for Office Chair, Memory Foam Car Seat Cushions Back Support Pillows, Help Relieve Pain of Back, Lumbar, Tailbone and Sciatic Nerve（Black）
- CasaZenith Foot Rest for Under Desk at Work - Ergonomic Foot Stools for Under Office Desk - Rocking Footrest with Roller Massager - Leg Rest for Chair, Computer Gaming - Promote Leg Circulation

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-23*