---
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 and Tall Computer Chair Black"
brand: "sihoo"
price: "$1459.23"
currency: USD
in_stock: true
reviews_count: 11
category: "Sihoo"
url: https://www.desertcart.us/products/534917752-doro-c300-ergonomic-office-chair-with-ultra-soft-3d-armrests
store_origin: US
region: United States of America
---

# Dynamic lumbar auto-adaptive support Ergonomic 3D adjustable headrest Intelligent gravity tilt mechanism Doro C300 Ergonomic Office Chair with Ultra Soft 3D Armrests, Dynamic Lumbar Support for Home Office Chair, Adjustable Backrest Desk Chair, Swivel Big and Tall Computer Chair Black

**Brand:** sihoo
**Price:** $1459.23
**Availability:** ✅ In Stock

## Summary

> 🖥️ Elevate your workspace — where ergonomic innovation meets sleek, professional style.

## 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 and Tall Computer Chair Black by sihoo
- **How much does it cost?** $1459.23 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/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

- • **Effortless Recline & Rock:** Intelligent gravity mechanism offers smooth tilt up to 20° with weight-adjustable resistance.
- • **Big & Tall Friendly Design:** Oversized frame with 150kg max weight capacity and adjustable backrest fits diverse body types.
- • **Tailored Comfort in Every Angle:** 3D adjustable headrest and linked armrests adapt seamlessly to your posture for all-day support.
- • **Breathable Mesh Meets Premium Build:** Soft, elastic mesh seat and backrest provide breathable comfort without sacrificing sturdiness.
- • **Backed by Science, Certified for Safety:** Passed BIFMA & TUV tests with SGS Class 4 cylinders ensuring durability and peace of mind.

## Overview

The SIHOO Doro C300 is a cutting-edge ergonomic office chair designed for professionals seeking customizable comfort and posture support. Featuring a 3D adjustable headrest, dynamic auto-adaptive lumbar support, and an intelligent gravity tilt mechanism, it ensures optimal alignment and relaxation during long work hours. Certified for safety and durability with premium breathable mesh and a robust frame, this chair accommodates big and tall users with ease, making it a smart investment for a healthy, productive home office.

## 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 and Tall Computer Chair Black: Home Office Desk Chairs - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Comfortable and accommodating for the price - I've used this chair for 3 months now, and I have zero regrets! I purchased this chair on sale, but the chair feels worth their original listed price. The mesh material has a nice, bouncy give to it that feels very comfortable when sitting. The mesh has a strategically used rubber texture that gives it some grab and prevents a sliding feeling when leaning. The plastic skelatal structure feels high-quality, and the base of the chair feels weighty and well built. The lean-back position on the chair feels great too. I haven't found a way to tilt the chair, but the lean-back feature and the shape of the base has made that a non-issue. I also haven't figured out if there is a way to further customize the lumbar support, but it feels adequitly placed and pronounced by default. A great feature of it is that it slides and automatically readjusts to your back when leaning. The entire backing of the chair can be raised or lowered as one piece. The highly customizable headrest was a selling point for me and I am VERY pleased with it. It can ARCH forward or back at multiple positions, TILT foward or back and pultiple positions, and SLIDE up or down in multiple positions. I can get it to the perfect position on my neck and get perfect head-support! The 5 metal legs and plasic rollers feel heavy and strong. The arms are adequit. They can't hug closer to your body, and the material on the armrests feel a little more stiff and frictiony than I might have originally perfered, but they feel like they will last. They may not have the pitch and extra customizability of a more expensive chairs' armrests, but they can slide forward and back and they have a large degree of rotation. I have been able to leavearge the rotation abilities offered, piared with the shape of the armrest, to find a comfortable position regardless of my various uses/needs. All-in-all, I feel it is a fantastic chair for the price and I highly reccomend it! (If Sihoo is reading this, I wish I could add-on a moderately priced, attachable footrest to this chair. 😉) End of novel.
Review: VERY PLEASED; Comfortable with many adjustments - I have a NOUHAUS Ergo3D Ergonomic Office Chair that purchased on desertcart 5 years ago that is good but wanted to step up and this chair is terrific as far as adjustments and lumbar support, neck wrest. Found the chair very comfortable. I was surprised how easy to put together. About an hour and cup of coffee. Saw reviews on difficult to assemble, those people must be challenged on anything past changing a light bulb. Only this I don't like is arm wrests move much more freely then I would like

## 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 |
| 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 | #83,090 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #230 in Home Office Desk Chairs |
| Brand | SIHOO |
| Chair Backrest Width | 21.26 Inches |
| Color | Black |
| Customer Reviews | 4.2 4.2 out of 5 stars (1,220) |
| Date First Available | May 29, 2023 |
| Fill Material | Mesh |
| Finish Type | Plastic |
| Form Factor | Ergonomic |
| Furniture base movement | Swivel |
| Included Components | Arm Pad |
| Indoor/Outdoor Usage | Indoor |
| Is Customizable | No |
| Is Foldable | No |
| Item Weight | 50.8 pounds |
| Item model number | DORO-C |
| Leg Style | Tapered Leg |
| Manufacturer | SIHOO |
| Maximum Weight Recommendation | 150 Kilograms |
| Model Name | Doro C300 |
| Pattern | Solid |
| Product Care Instructions | Wipe Clean |
| Product Dimensions | 15.35"D x 23.23"W x 30.31"H |
| 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 |
| Shape | S-Shape |
| Size | Oversized |
| Special Feature | Adjustable,Durable,Flexible |
| Style | Basic |
| Surface Recommendation | Hard Floor |
| Tilting | Yes |
| Unit Count | 1.0 Count |

## Product Details

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

## Images

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

## Available Options

This product comes in different **Color, Style** 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).

## Customer Reviews

### ⭐⭐⭐⭐⭐ Comfortable and accommodating for the price
*by A***Y on September 15, 2024*

I've used this chair for 3 months now, and I have zero regrets! I purchased this chair on sale, but the chair feels worth their original listed price. The mesh material has a nice, bouncy give to it that feels very comfortable when sitting. The mesh has a strategically used rubber texture that gives it some grab and prevents a sliding feeling when leaning. The plastic skelatal structure feels high-quality, and the base of the chair feels weighty and well built. The lean-back position on the chair feels great too. I haven't found a way to tilt the chair, but the lean-back feature and the shape of the base has made that a non-issue. I also haven't figured out if there is a way to further customize the lumbar support, but it feels adequitly placed and pronounced by default. A great feature of it is that it slides and automatically readjusts to your back when leaning. The entire backing of the chair can be raised or lowered as one piece. The highly customizable headrest was a selling point for me and I am VERY pleased with it. It can ARCH forward or back at multiple positions, TILT foward or back and pultiple positions, and SLIDE up or down in multiple positions. I can get it to the perfect position on my neck and get perfect head-support! The 5 metal legs and plasic rollers feel heavy and strong. The arms are adequit. They can't hug closer to your body, and the material on the armrests feel a little more stiff and frictiony than I might have originally perfered, but they feel like they will last. They may not have the pitch and extra customizability of a more expensive chairs' armrests, but they can slide forward and back and they have a large degree of rotation. I have been able to leavearge the rotation abilities offered, piared with the shape of the armrest, to find a comfortable position regardless of my various uses/needs. All-in-all, I feel it is a fantastic chair for the price and I highly reccomend it! (If Sihoo is reading this, I wish I could add-on a moderately priced, attachable footrest to this chair. 😉) End of novel.

### ⭐⭐⭐⭐⭐ VERY PLEASED; Comfortable with many adjustments
*by C***L on January 9, 2026*

I have a NOUHAUS Ergo3D Ergonomic Office Chair that purchased on Amazon 5 years ago that is good but wanted to step up and this chair is terrific as far as adjustments and lumbar support, neck wrest. Found the chair very comfortable. I was surprised how easy to put together. About an hour and cup of coffee. Saw reviews on difficult to assemble, those people must be challenged on anything past changing a light bulb. Only this I don't like is arm wrests move much more freely then I would like

### ⭐⭐⭐⭐⭐ Great chair, greater value
*by A***R on December 2, 2025*

Upon arrival I had an issue with the wheels sticking a bit. I reached out to Sihoo support and they quickly sent me replacement parts for the affected areas. Since then I have had a great experience with this chair. It’s very comfortable, sleek looking, easy to adjust, and is great build quality. It’s easy to adjust it to fit your comfort needs. The reclining lock and headrest adjustment are awesome. After having used it for about 5 months, I’m super happy with it. It’s an incredible chair for the price.

## Frequently Bought Together

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-22*