---
product_id: 253717728
title: "BackJoy SitSmart Posture Plus - Seat Cushion, Designed for Lower Back Pain, Improve Posture, For Car Seats, Office/Outdoor/Desk Chairs, Portable, Durable EVA Foam, Waterproof, For Adults, Pink Color"
brand: "backjoy"
price: "₩9872"
currency: KRW
in_stock: true
url: https://www.desertcart.kr/products/253717728-backjoy-sitsmart-posture-plus-seat-cushion-designed-for-lower-back
store_origin: KR
region: South Korea
---

# Lightweight 1.05 lbs portable design Waterproof EVA foam cover 13" x 15.5" ergonomic size BackJoy SitSmart Posture Plus - Seat Cushion, Designed for Lower Back Pain, Improve Posture, For Car Seats, Office/Outdoor/Desk Chairs, Portable, Durable EVA Foam, Waterproof, For Adults, Pink Color

**Brand:** backjoy
**Price:** ₩9872
**Availability:** ✅ In Stock

## Summary

> 🪑 Sit Smart, Stand Out: Elevate Your Posture, Elevate Your Day!

## Quick Answers

- **What is this?** BackJoy SitSmart Posture Plus - Seat Cushion, Designed for Lower Back Pain, Improve Posture, For Car Seats, Office/Outdoor/Desk Chairs, Portable, Durable EVA Foam, Waterproof, For Adults, Pink Color by backjoy
- **How much does it cost?** ₩9872 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/253717728-backjoy-sitsmart-posture-plus-seat-cushion-designed-for-lower-back)

## Best For

- backjoy enthusiasts

## Why This Product

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

## Key Features

- • **Durable Waterproof Comfort:** Premium EVA foam with a waterproof cover ensures long-lasting use indoors or outdoors without wear.
- • **Universal Fit for Any Seat:** Perfectly sized to enhance comfort on car seats, office chairs, and even outdoor benches.
- • **Ergonomic Posture Optimization:** Scientifically designed to realign your spine and reduce lower back pain wherever you sit.
- • **Portable Pain Relief On-the-Go:** Lightweight and travel-friendly—take your back support from desk to driveway effortlessly.
- • **Gradual Adjustment for Lasting Benefits:** Supports natural posture correction with a gentle break-in period to ease your body into comfort.

## Overview

BackJoy SitSmart Posture Plus is a scientifically engineered seat cushion crafted from durable, waterproof EVA foam. Measuring 13" x 15.5" and weighing just over a pound, it delivers targeted lumbar support and posture correction for adults across all seating environments—from office chairs to car seats and outdoor benches. Designed for portability and long-term comfort, it helps alleviate lower back pain by promoting natural spinal alignment, making it an essential ergonomic upgrade for busy professionals who refuse to compromise on health or style.

## Description

BackJoy SitSmart is an innovative back support cushion that provides natural, safe and effective back pain relief by optimizing your posture - anytime and anywhere you sit. Provides lumbar support, lower back pain relief, and corrects spine posture in cars, office environments and any surface. BackJoy SitSmart Posture Plus features a comfortable, waterproof EVA foam covering for indoor or outdoor use. This coccyx cushion works on any type of seat, including office chairs, car seats, and hard or soft surfaces. The waterproof base and covering provide long-term use. These models help relieve back, posture, spinal, sciatia, lumbar, and lower neck pain. BackJoy SitSmart Pro Gel style features a soothing layer of gel-infused memory foam beneath the surface for extra pressure relief when sitting for long periods of time.The SitSmart Relief style features a soft black fabric covering that's great for everyday use at the office, at home or in the car. To enjoy the benefits of SitSmart, make sure you review the information packet included inside the product packaging. It is important to note that changing your sitting posture can cause temporary discomfort, such as going to the gym for the first time. Your muscles, joints and ligaments may need time to adjust and relax into the new posture that your BackJoy provides. If this is the cause of your discomfort, limit usage to 15 minutes and increase usage over the course of a few days or a week. Go slow and listen to what your body needs. If there is an increase in pain, stop using your BackJoy and consult a medical professional.

## Features

- BackJoy SitSmart Posture Plus is an innovative, proven back pain cushion that provides natural, safe and effective back pain relief by optimizing your posture.
- Perfect as a coccyx seat cushion, office chair cushion, and for tailbone relief.
- Different than our SitSmart Relief and Tractions! BackJoy SitSmart Posture Plus features a comfortable, waterproof EVA foam covering for indoor or outdoor use.
- Portable Cushion: Easy for travel. Works for car seats, office chairs, hard surface chairs, desk chairs, outdoor surfaces, and driving.
- Please note: changing your sitting posture can cause temporary discomfort. Your body may need time to adjust and relax into the new posture that your BackJoy provides. Please reference the manual for additional information. Measures 13" x 15.5".

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Weight | 1.05 Pounds |
| Units | 1 Count |
| Brand | BackJoy |
| Age Range Description | Adult |

## Product Details

- **Brand:** BackJoy
- **Special features:** Durable,Portable
- **Colour:** Posture Plus, Pink
- **Size:** One Size
- **Fill material:** Foam

## Images

![BackJoy SitSmart Posture Plus - Seat Cushion, Designed for Lower Back Pain, Improve Posture, For Car Seats, Office/Outdoor/Desk Chairs, Portable, Durable EVA Foam, Waterproof, For Adults, Pink Color - Image 1](https://m.media-amazon.com/images/I/61YlM8qJ6CL.jpg)
![BackJoy SitSmart Posture Plus - Seat Cushion, Designed for Lower Back Pain, Improve Posture, For Car Seats, Office/Outdoor/Desk Chairs, Portable, Durable EVA Foam, Waterproof, For Adults, Pink Color - Image 2](https://m.media-amazon.com/images/I/41we0FEf7TL.jpg)
![BackJoy SitSmart Posture Plus - Seat Cushion, Designed for Lower Back Pain, Improve Posture, For Car Seats, Office/Outdoor/Desk Chairs, Portable, Durable EVA Foam, Waterproof, For Adults, Pink Color - Image 3](https://m.media-amazon.com/images/I/61OLdAfSC1L.jpg)
![BackJoy SitSmart Posture Plus - Seat Cushion, Designed for Lower Back Pain, Improve Posture, For Car Seats, Office/Outdoor/Desk Chairs, Portable, Durable EVA Foam, Waterproof, For Adults, Pink Color - Image 4](https://m.media-amazon.com/images/I/718JwVkPdUL.jpg)
![BackJoy SitSmart Posture Plus - Seat Cushion, Designed for Lower Back Pain, Improve Posture, For Car Seats, Office/Outdoor/Desk Chairs, Portable, Durable EVA Foam, Waterproof, For Adults, Pink Color - Image 5](https://m.media-amazon.com/images/I/91xDdKfsrjL.jpg)

## Questions & Answers

**Q: Would this item be able to fold and put in a back pack for my daughter to use at school?**
A: This item does not fold.  The base of the Back joy is made of a firm plastic, which is lined with a softer foam top.  It may be able to fit in her backpack, depending on the backpack's size and how much spare room there was.

**Q: how much for the shipping fee to ship to Hong Kong?**
A: How can I know before checking out?

**Q: Where is the violet posture seat?**
A: There is a violet color option for Posture Core only at this time.

**Q: How would this be for sitting on the ground?**
A: Some have used on ground.  I have not. I just use in car on very long trips. It says you can sit anywhere with it though. Shows a pic with it on ground. It’s super comfortable. You would not think this odd looking seat work. But it does.

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**Shop now:** [https://www.desertcart.kr/products/253717728-backjoy-sitsmart-posture-plus-seat-cushion-designed-for-lower-back](https://www.desertcart.kr/products/253717728-backjoy-sitsmart-posture-plus-seat-cushion-designed-for-lower-back)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-01*