---
product_id: 663485051
title: "ProtoArc Office Desk Chair Cushion, Ergonomic Coccyx Cushions, Memory Foam Seat Cushion for Car, Home, Pressure Distribution Cushion for Tailbone Hip Support, All Day Comfort - Black"
brand: "protoarc"
price: "3639423₫"
currency: VND
in_stock: true
reviews_count: 13
category: "Proto Arc"
url: https://www.desertcart.vn/products/663485051-protoarc-office-desk-chair-cushion-ergonomic-coccyx-cushions-memory-foam
store_origin: VN
region: Vietnam
---

# High-density memory foam 125% denser U-shape ergonomic design Non-slip bottom for secure grip ProtoArc Office Desk Chair Cushion, Ergonomic Coccyx Cushions, Memory Foam Seat Cushion for Car, Home, Pressure Distribution Cushion for Tailbone Hip Support, All Day Comfort - Black

**Brand:** protoarc
**Price:** 3639423₫
**Availability:** ✅ In Stock

## Summary

> 🪑 Sit Smart, Work Better – Upgrade Your Comfort Game!

## Quick Answers

- **What is this?** ProtoArc Office Desk Chair Cushion, Ergonomic Coccyx Cushions, Memory Foam Seat Cushion for Car, Home, Pressure Distribution Cushion for Tailbone Hip Support, All Day Comfort - Black by protoarc
- **How much does it cost?** 3639423₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/663485051-protoarc-office-desk-chair-cushion-ergonomic-coccyx-cushions-memory-foam)

## Best For

- protoarc enthusiasts

## Why This Product

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

## Key Features

- • **Stay Fresh & Secure:** Breathable, removable cover with zipper and anti-slip base keeps cushion stable and clean.
- • **Certified Safe & Durable:** Skin-friendly, hypoallergenic materials comply with EU safety standards for long-lasting support.
- • **Portable Comfort On-the-Go:** Built-in handle and universal fit make it ideal for office, car, gaming, or home use.
- • **Memory Foam That Molds to You:** Premium 10cm thick, 23.5oz high-density foam adapts perfectly to your body shape without flattening.
- • **Tailbone Relief, Elevated Comfort:** Innovative U-shape with coccyx cut-out reduces pressure and supports posture all day.

## Overview

The ProtoArc Office Desk Chair Cushion features a unique U-shaped ergonomic design with a coccyx cut-out to evenly distribute pressure and support hips. Crafted from 125% denser high-density memory foam, it molds to your body for all-day comfort without losing shape. Its breathable, removable cover with a non-slip bottom ensures stability and hygiene, while the built-in handle offers easy portability. Perfect for office, car, or home use, this cushion is designed to relieve tailbone pain and improve posture, making it a must-have for professionals seeking premium comfort and support.

## Description

Great prices on your favourite Home brands, and free delivery on eligible orders.

Review: It's a really good product ! - It's a really good product ! Contoured to accommodate your posterior at all points, except coxccys to provide relief from pain. It's comfortable to sit on, having that right blend of softness, yet firm. I bought it for my upcoming hemorrhoid operation, which I haven't received my appointment yet.
Review: Excellent product for tailbone pain - I’ve only just received this item but so far it’s fantastic! Whilst sitting at the dining table, it immediately helped with my tailbone pain and it moulds to my shape really well. It bounces back due to the memory foam. Even using it on the sofa has made me far more comfortable and without the usual pain.

## Features

- Innovative U-Shape Design: Unique tailbone cut-out even weight distribution, and raised sides for hip support. Pre-shaped foam molds to your body for exceptional comfort and support. Upgrade to optimal comfort with our coccyx cushion (18"L x 16"W x 4"H) and transform your sitting experience today. Note: For optimal comfort, 1.Please measure your seat size in advance to ensure a perfect fit. 2.we recommend this seat cushion for office chair for individuals weighing less than 100 kg. For weights exceeding 100kg, we recommend the upgraded version SC Butterfly XL
- Ergonomic Seat Cushion: The split and orthopedic design helps disperse body weight evenly across the hips and thighs, encouraging a comfortable posture for long-sitting groups
- Premium Certified Quality: With 5-zone ergonomic support, 23.5oz 10cm thick high-density memory foam, 125% denser than standard cushions, delivers firm, resilient support without flattening out; crafted with skin-friendly foam and breathable fabric, it retains shape for long-term use while complying with EU REACH SVHC ≤0.1% regulations for safe, reliable daily sitting
- Ease Of Use: Built-in handle to make it easy to carry. Breathable cover with zipper closure for easy machine washing. Non-slip bottom ensures grip, especially on leather seats, for secure placement. Removable cover maintains freshness, while the non-slip feature enhances stability
- Take Comfort Anywhere: ProtoArc seat cushion reduces pressure on lower back and hip for all-day comfort, perfect for office, home desk chairs, car seats, road trips, gaming chairs and wheelchairs. Standard size fits all body shapes, including pregnant women, ensuring superior support and comfort anytime, anywhere
- Tips: 1. It may take 1-2 weeks to adjust to the cushion's shape for the first time. Many users have found it offers consistent comfort during prolonged use. 2.The cushion comes vacuum sealed so you will need to let it expand for an hour or two before first use

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D2Y1FMT6 |
| Age Range Description | 3 years old+ |
| Best Sellers Rank | 18,260 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 52 in Back & Seat Cushions |
| Brand Name | ProtoArc |
| Colour | Black |
| Country Of Origin | China |
| Cover Material | Wool |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,996) |
| Fabric Type | Pilling Resistant Cotton |
| Indoor Outdoor Usage | Indoor |
| Item Dimensions L x W | 45.7L x 40.7W centimetres |
| Item Firmness Description | Soft |
| Item Shape | Semicircular |
| Item Thickness | 10.16 Centimetres |
| Item Weight | 1 Kilograms |
| Manufacturer | ProtoArc |
| Manufacturer Part Number | SC Butterfly |
| Material Features | Breathable, Hypoallergenic |
| Model Name | SC Butterfly |
| Model Number | SC Butterfly |
| Number of Items | 1 |
| Other Special Features of the Product | Adaptive Memory Foam, Anti-Slip, Concealed Zipper, Pressure Distribution Design, Removable Cover |
| Pattern | Plain |
| Pillow Type | Furniture Cushion |
| Product Care Instructions | Dry Clean Only, Machine Wash |
| Recommended Uses For Product | Reading, Sitting, Studying, Travelling, Working |
| Size | L |
| Sleeping Bag Filling Material | Memory Foam |
| Style Name | Contemporary |
| Unit Count | 1.0 count |

## Product Details

- **Fill material:** Memory Foam
- **Pillow type:** Furniture Cushion
- **Colour:** Black
- **Size:** L
- **Brand:** ProtoArc

## Images

![ProtoArc Office Desk Chair Cushion, Ergonomic Coccyx Cushions, Memory Foam Seat Cushion for Car, Home, Pressure Distribution Cushion for Tailbone Hip Support, All Day Comfort - Black - Image 1](https://m.media-amazon.com/images/I/81EhqtIdQwL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ It's a really good product !
*by J***I on 21 December 2025*

It's a really good product ! Contoured to accommodate your posterior at all points, except coxccys to provide relief from pain. It's comfortable to sit on, having that right blend of softness, yet firm. I bought it for my upcoming hemorrhoid operation, which I haven't received my appointment yet.

### ⭐⭐⭐⭐⭐ Excellent product for tailbone pain
*by J***. on 1 March 2026*

I’ve only just received this item but so far it’s fantastic! Whilst sitting at the dining table, it immediately helped with my tailbone pain and it moulds to my shape really well. It bounces back due to the memory foam. Even using it on the sofa has made me far more comfortable and without the usual pain.

### ⭐⭐⭐⭐ Takes a week to adjust, but helped with tailbone discomfort
*by D***N on 6 November 2025*

Takes some getting used to, but it does help over time I bought this because I was getting pain in my tailbone area from sitting for long periods at my desk (work and gaming). At first it felt a bit strange to sit on. For me, it took about a week of daily use to get used to it, and that’s around the point where I started noticing the pressure easing and the discomfort improving. Once I settled into it, it did help make longer sitting sessions more comfortable. The design spreads your weight more evenly and takes the pressure off the tailbone. So if it feels odd at first, I’d say stick with it and give it time rather than judging it straight away. The cover has a zip so you can take it off to wash, which is a nice practical touch. Mine has held its shape well so far and still looks the same after regular use. The only thing to mention is the price. It works, but it does feel a little on the higher side compared to some similar options. I’d say it’s good value if you can grab it when it’s discounted. I got mine at full price. Overall, not an instant fix, but it genuinely helped after a bit of adjustment time. Worth considering if you spend a lot of hours sitting. I have mine on a secret lab titan chair for size comparison in my pictures.

## Frequently Bought Together

- ProtoArc Seat Cushion for Tailbone Pain Relief, Office Chair Cushion, Coccyx Cushion, Ergonomic Memory Foam Seat Cushion for Home, Car, Pressure Relief Pad for Hip, Coccyx, All Day Comfort - Black
- Everlasting Comfort Doctor Recommended Memory Foam Seat Cushion for Office Chairs & Car Seat - Ergonomic Office Desk Accessories for Tailbone Pain Relief, Sciatica & Back Support
- QUTOOL Lumbar Support Pillow for Office Chair,Office Home Essentials,Back Support Pillow for Car, Chair Cushions,Back Pain Relief Improve Posture,Mesh Cover Double Adjustable Straps

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.vn/products/663485051-protoarc-office-desk-chair-cushion-ergonomic-coccyx-cushions-memory-foam](https://www.desertcart.vn/products/663485051-protoarc-office-desk-chair-cushion-ergonomic-coccyx-cushions-memory-foam)

---

*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-06-04*