---
product_id: 534917752
title: "Doro C300 Ergonomic Office Chair with Ultra Soft 3D Armrests | Dynamic Lumbar Support for Home Office Chair, Adjustable Backrest Desk Chair, Swivel Big & Tall Computer Chair, Black"
brand: "sihoo"
price: "4228.99 DT"
currency: TND
in_stock: true
category: "Sihoo"
url: https://www.desertcart.tn/products/534917752-doro-c300-ergonomic-office-chair-with-ultra-soft-3d-armrests
store_origin: TN
region: Tunisia
---

# 360° swivel with smooth tilt Ergonomic 3D adjustable armrests BIFMA & TUV safety certified Doro C300 Ergonomic Office Chair with Ultra Soft 3D Armrests | Dynamic Lumbar Support for Home Office Chair, Adjustable Backrest Desk Chair, Swivel Big & Tall Computer Chair, Black

**Brand:** sihoo
**Price:** 4228.99 DT
**Availability:** ✅ In Stock

## Summary

> 🖥️ Elevate your workday with SIHOO’s smart ergonomic throne!

## Quick Answers

- **What is this?** Doro C300 Ergonomic Office Chair with Ultra Soft 3D Armrests | Dynamic Lumbar Support for Home Office Chair, Adjustable Backrest Desk Chair, Swivel Big & Tall Computer Chair, Black by sihoo
- **How much does it cost?** 4228.99 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/534917752-doro-c300-ergonomic-office-chair-with-ultra-soft-3d-armrests)

## Best For

- sihoo enthusiasts

## Why This Product

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

## Key Features

- • **Dynamic Lumbar Support:** Auto-adaptive lumbar system cradles your lower back, reducing fatigue during marathon work sessions.
- • **Built to Last & Certified Safe:** Premium stainless steel frame with SGS Class 4 gas lift and multiple safety certifications for peace of mind.
- • **Tailored Comfort in Every Angle:** 3D adjustable headrest & armrests adapt perfectly to your posture for all-day support.
- • **Effortless Movement & Flexibility:** 360° swivel and intelligent gravity tilt mechanism with weight-adjustable resilience for seamless transitions.
- • **Designed for Big & Tall Professionals:** Generous seat dimensions and 150kg weight capacity ensure comfort without compromise.

## Overview

The SIHOO Doro C300 is a cutting-edge ergonomic office chair featuring ultra-soft 3D adjustable armrests, dynamic auto-adaptive lumbar support, and a 360° swivel with intelligent gravity tilt. Designed for big & tall users, it combines breathable mesh materials with a robust stainless steel frame, meeting top-tier safety certifications (BIFMA, TUV, SGS). Perfect for professionals seeking health-conscious comfort and durability in their home or office workspace.

## Description

Buy SIHOO Doro C300 Ergonomic Office Chair with Ultra Soft 3D Armrests | Dynamic Lumbar Support for Home Office Chair, Adjustable Backrest Desk Chair, Swivel Big & Tall Computer Chair, Black: Home Office Desk Chairs - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- 【Innovative Ergonomic Chair】SIHOO's latest office chair has been developed using the latest technology to provide comfortable sitting while maintaining the correct posture for a healthy lifestyle. The ergonomic chair features an automatically adjustable 3D headrest, automatically adjustable lumbar support, linked 3D armrests, intelligent gravity structure and automatic adjustment. Following the concept of a "chair that sits on your body", the soft backrest and breathable mesh seat design provide a comfortable sitting experience, even after long hours of sitting.
- 【Wide Angle Adjustable Headrest and Trackable Backrest】The SIHOO A3 office chair features a 3D headrest with automatic macro adjustment, which can be adjusted 4.5cm up and down, 6.5cm back and forth and 20° angle. Made of soft mesh material, it is designed with the latest triangular soft elastic frame with triangular support straps from the shoulders to the lumbar area on both sides to support the back. The 4-position adjustable 6cm liftable backrest is suitable for people of all heights. When the backrest is adjusted to the highest level, it automatically reverts to 1 level.
- 【Domino auto-adaptive lumbar support and 3D linkage armrest】The SIHOO A3 office chair features a 3D automatic macro-adjustable headrest that can be adjusted 4.5cm up and down, 6.5cm back and forth and 20° angle. Made of soft mesh material, it is designed with the latest triangular soft elastic frame with triangular support straps from the shoulders to the lumbar area on both sides to support the back. The 4-position adjustable 6cm liftable backrest is suitable for people of all heights. When the backrest is adjusted to the highest level, it automatically reverts to 1 level.
- 【Intelligent gravity mechanism・Automatic adjustment function】If it is the tilt function of the ergonomic chair, it is the key construction component. SIHOO's newest chair features an intelligent gravity mechanism with weight-adjustable resilience, making it easy to operate at any weight. It has a 2-step auto-adjustment function and can be tilted to a maximum of 20 degrees from 92 degrees - 100 degrees - 112 degrees. Place your body on the back of the chair and enjoy a comfortable rocking motion. Or tilt it up to 112 degrees between work sessions for a short break and relaxation!
- 【Safety certification】SIHOO A3 office chair has passed the American BIFMA specification and German TUV product safety certification, [backrest strength test] [seat surface impact test] [caster durability test] [leg strength test] and all other tests. Equipped with SGS Class 4 cylinders certified by SGS, ensuring durability and safety. SIHOO's tables and chairs come with a three-year warranty from the date of purchase. For your peace of mind, please feel free to contact us if there are any defects, deficiencies or uncertainties in the product you are purchasing.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C3T865C2 |
| Additional Features | Adjustable,Durable,Flexible |
| Age Range Description | Adult |
| Arm Height | 31.7 inches |
| Arm Style | With arms |
| Assembly Instructions Description | Assembly required. Follow the instructions provided to set up the chair. |
| Back Style | Solid Back |
| Best Sellers Rank | #71,837 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #203 in Home Office Desk Chairs |
| Brand Name | SIHOO |
| Chair Backrest Width | 21.26 inches |
| Color | Black |
| Customer Reviews | 4.2 4.2 out of 5 stars (1,322) |
| Fill Material | Mesh |
| Finish Types | Plastic |
| Form Factor | Ergonomic |
| Frame Material Type | Stainless Steel |
| Furniture Base Movement | Swivel |
| Included Components | Arm Pad |
| Indoor Outdoor Usage | Indoor |
| Item Depth | 15.35 inches |
| Item Dimensions | 15.35 x 23.23 x 30.31 inches |
| Item Dimensions D x W x H | 15.35"D x 23.23"W x 30.31"H |
| Item Weight | 23.1 kg |
| Leg Style | Tapered Leg |
| Manufacturer | SIHOO |
| Manufacturer Part Number | DORO-C |
| Material Type | Mesh |
| Maximum Weight Recommendation | 150 kg |
| Model Name | C-SERIES |
| Model Number | A3-C500 |
| Pattern | Solid |
| Product Care Instructions | Wipe Clean |
| Reclining Position Count | 3 |
| Recommended Uses For Product | Office |
| Room Type | Office |
| Seat Back Interior Height | 17.72 inches |
| Seat Depth | 16.54 inches |
| Seat Height | 18.9 inches |
| Seat Material | Mesh |
| Shape | S-Shape |
| Size | Pack of 1 |
| Style Name | Modern |
| Surface Recommendation | Hard Floor |
| Unit Count | 1 Count |

## Product Details

- **Brand:** SIHOO
- **Color:** Black
- **Material:** Mesh
- **Product Dimensions:** 15.35"D x 23.23"W x 30.31"H
- **Size:** Pack of 1

## Images

![Doro C300 Ergonomic Office Chair with Ultra Soft 3D Armrests | Dynamic Lumbar Support for Home Office Chair, Adjustable Backrest Desk Chair, Swivel Big & Tall Computer Chair, Black - Image 1](https://m.media-amazon.com/images/I/71ir96hzGeL.jpg)

## Available Options

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

## Questions & Answers

**Q: Can you help me understand the lumbar support function and other adjustment functions of this chair?**
A: Hello, this Doro C300 ergonomic office chair incorporates a dynamic tracking system that conforms to your back as you move your upper body to adjust to the position that makes you most comfortable.
This high-back office chair is also equipped with 3D armrests, and the backrest height offers four levels of elevation adjustment.

**Q: Has anyone tried this chair comfortable, how about the lumbar support?**
A: Very comfortable, the chair is very large, tall people sitting also suitable, and their lumbar pillow can be self-adaptive adjustment, I have fallen in love with this chair.

**Q: What is the difference between this chair and your M18?**
A: Compared to our M18, this chair has more adjustment options and a more luxurious design, such as the ultra soft 3D Armrests, more adjustable height backrests, and a dynamic lumbar support design, which better supports your waist and has a larger size and load-bearing capacity，which is more suitable for tall and big people.

**Q: I want to choose a Office chair for my newly renovated office.Is there anyone who has bought it willing to share the visual effect of the real object?**
A: I am glad to share with you that I purchased this chair a week ago and placed it in my study. The actual product has a more textured texture, and its exterior design can truly fit every usage scenario. Its functions are absolutely stunning, and I work late without any pain in my waist (solving the problem that has been bothering me for a long time).

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-31*