---
product_id: 612856763
title: "SIHOO M56C Ergonomic Office Chair, Big and Tall Desk Chair with Lumbar Support, Adjustable Headrest, Tilt Function, Swivel Computer Chair, Black"
brand: "sihoo"
price: "$890.49"
currency: USD
in_stock: true
reviews_count: 8
category: "Sihoo"
url: https://www.desertcart.us/products/612856763-sihoo-m56c-ergonomic-office-chair-big-and-tall-desk-chair
store_origin: US
region: United States of America
---

# 3D adaptive lumbar support Dual-tilt & swivel function Oversized adjustable headrest SIHOO M56C Ergonomic Office Chair, Big and Tall Desk Chair with Lumbar Support, Adjustable Headrest, Tilt Function, Swivel Computer Chair, Black

**Brand:** sihoo
**Price:** $890.49
**Availability:** ✅ In Stock

## Summary

> 🖥️ Elevate your workspace — where ergonomic innovation meets all-day luxury!

## Quick Answers

- **What is this?** SIHOO M56C Ergonomic Office Chair, Big and Tall Desk Chair with Lumbar Support, Adjustable Headrest, Tilt Function, Swivel Computer Chair, Black by sihoo
- **How much does it cost?** $890.49 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/612856763-sihoo-m56c-ergonomic-office-chair-big-and-tall-desk-chair)

## 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

- • **Built to Endure:** Reinforced materials tested over 100,000 times ensure durability that keeps pace with your busiest workdays.
- • **Customizable Comfort:** Oversized 2D headrest and W-shaped seat cushion reduce strain and evenly distribute weight for hip and thigh relief.
- • **Worry-Free Ownership:** Backed by a 3-year warranty and 30-day easy returns, plus responsive 24-hour customer support.
- • **Adaptive Tilt & Swivel:** Lock in your ideal angle with dual-tilt mechanism and enjoy smooth 360° swivel for effortless multitasking.
- • **Dynamic Lumbar Support:** 3D adaptive pillow flexes with your every move, keeping your spine perfectly aligned all day.

## Overview

The SIHOO M56C is a premium ergonomic office chair designed for big and tall users, featuring a 3D adaptive lumbar pillow, adjustable oversized headrest, and a dual-tilt swivel mechanism. Its breathable mesh, reinforced backrest, and W-shaped seat cushion provide full-length support and pressure relief. Built with durability tested over 100,000 cycles, it promises long-lasting comfort and reliability, backed by a 3-year warranty and hassle-free customer service.

## Description

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The video guides you through product setup. The video compares multiple products. The video shows the product being unpacked. Moves with Your Waist as You Twist or Shift Merchant Video (window.desertcartUIPageJS ? desertcartUIPageJS : P).load.js('https://m.media-desertcart.com/images/I/61rtJ3+GOOL.js?AUIClients/VSEPlayer'); (window.desertcartUIPageJS ? desertcartUIPageJS : P).load.js('https://m.media-desertcart.com/images/I/3175HHgX+OL._RC|01x4giTy+uL.js,01r9LpT6pbL.js,41NWBkfooBL.js,11QfrzttlqL.js,91VXiFQ1TCL.js,01ELLYeIOkL.js_.js?AUIClients/Brila'); (function(f) {var _np=(window.P._namespace("vse-ns-initVSEPlayerOnLoad"));if(_np.guardFatal){_np.guardFatal(f)(_np);}else{f(_np);}}(function(P) { P.when('VSEPlayer').execute(function(vsePlayer){vsePlayer.initPlayer('aplus-15808-player-04bc8e8e-6dff-4241-95eb-ff6f4d0f79b8-player-ps');}); //Please use below event to register FeedbackForm P.when('A', 'VSEComponentAssets').execute('vse-ns-player-initialization', function(A, asset) { A.trigger('vse:ns:player:aplus-15808:init', 'aplus-15808-player-04bc8e8e-6dff-4241-95eb-ff6f4d0f79b8-player-ps'); }); })); Moves with Your Waist as You Twist or Shift With 192 in² of extra-large support, the backrest provides full coverage for your lower back and hips, relieving pressure and enhancing comfort through long hours of sitting. With 15° forward and backward tilt, the backrest adapts to your posture changes, maintaining firm lumbar support whether you're leaning forward, sitting upright, or reclining. With 10° of lateral flexibility, the backrest adjusts in real time to follow your waist as you twist or shift, ensuring continuous support and a more adaptive sitting experience.

Review: Good quality and reasonable price - Value for money
Review: Good Quality - Good value for the price

## Features

- 【Dynamic Lumbar & Back Support】The 3D adaptive lumbar pillow flexes with your movements to keep your spine aligned and lower back properly supported—whether you're typing upright at your desk or reclining to 125° for a breather. Paired with a widened, reinforced backrest, it provides full-length back support that eases tension and helps you stay comfortable all day long.
- 【Premium Ergonomic Comfort】The oversized 2D headrest (height/tilt adjustable) cradles your head and neck to reduce strain, especially during long work calls or focused tasks. The W-shaped seat cushion evenly distributes weight to ease pressure on your hips and thighs, while the breathable mesh and soft armrests keep you cool and supported through every hour of sitting.
- 【Built to Last】Easily lock in your ideal sitting angle with the dual-tilt mechanism—perfect for staying focused during work or taking quick, relaxing breaks. Built with reinforced materials, this chair delivers dependable durability and body support that hold up in any home office or daily workspace.
- 【High quality】Built and tested for years of comfort. Every part of Sihoo M56C is made from high-quality materials. In addition, each chair is tested over 100,000 times on every key part before shipping, which ensures dependable support and all-day comfort that stands the test of time.
- 【Hassle-Free Warranty & Support】Your comfort and satisfaction come first. Enjoy worry-free with our 3-year warranty and 30-day easy returns. If you experience any issues, our customer service team is ready to help within 24 hours. We’re committed to keeping your chair comfortable, reliable, and worry-free for years to come.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DTHPF19Z |
| Additional Features | Ergonomic |
| Age Range Description | Adult |
| Back Style | Solid Back |
| Best Sellers Rank | #2,104 in Home ( See Top 100 in Home ) #18 in Home Office Desk Chairs |
| Brand | SIHOO |
| Brand Name | SIHOO |
| Color | M56 Black |
| Colour | M56 Black |
| Customer Reviews | 4.3 out of 5 stars 35 Reviews |
| Form Factor | Upholstered |
| Frame Material Type | Polypropylene |
| Included Components | no components included |
| Indoor Outdoor Usage | Indoor |
| Item Depth | 26.37 inches |
| Item Dimensions | 43.5 x 51 x 133.5 centimeters |
| Item Dimensions D x W x H | 67D x 65W x 126H centimeters |
| Item Weight | 16.78 kg |
| Item weight | 16.78 kg |
| Leg Style | wheels |
| Manufacturer | SIHOO |
| Manufacturer Part Number | M56C-M101-V3 |
| Material | Mesh |
| Material Type | Mesh |
| Model Number | M56C |
| Pattern | Solid |
| Product dimensions | 67D x 65W x 126H centimeters |
| Reclining Position Count | 2 |
| Required Assembly | No |
| Seat Depth | 49.5 centimeters |
| Seat Material | Mesh |
| Shape | rectangular |
| Size | Large |
| Style Name | Modern |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** SIHOO
- **Colour:** Black with Footrest
- **Material:** Aluminum Alloy+ Mesh + Metal + Plastic
- **Product dimensions:** 152.4D x 162.6W x 272H centimeters
- **Size:** With Footrest

## Images

![SIHOO M56C Ergonomic Office Chair, Big and Tall Desk Chair with Lumbar Support, Adjustable Headrest, Tilt Function, Swivel Computer Chair, Black - Image 1](https://m.media-amazon.com/images/I/61LgbtuVDsL.jpg)
![SIHOO M56C Ergonomic Office Chair, Big and Tall Desk Chair with Lumbar Support, Adjustable Headrest, Tilt Function, Swivel Computer Chair, Black - Image 2](https://m.media-amazon.com/images/I/71DY9Qhyx+L.jpg)
![SIHOO M56C Ergonomic Office Chair, Big and Tall Desk Chair with Lumbar Support, Adjustable Headrest, Tilt Function, Swivel Computer Chair, Black - Image 3](https://m.media-amazon.com/images/I/6142RjcvJ0L.jpg)
![SIHOO M56C Ergonomic Office Chair, Big and Tall Desk Chair with Lumbar Support, Adjustable Headrest, Tilt Function, Swivel Computer Chair, Black - Image 4](https://m.media-amazon.com/images/I/717HCj2gBmL.jpg)
![SIHOO M56C Ergonomic Office Chair, Big and Tall Desk Chair with Lumbar Support, Adjustable Headrest, Tilt Function, Swivel Computer Chair, Black - Image 5](https://m.media-amazon.com/images/I/81ndnAuRlbL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good quality and reasonable price
*by P***Z on 9 July 2025*

Value for money

### ⭐⭐⭐⭐ Good Quality
*by M***U on 19 November 2025*

Good value for the price

### ⭐⭐⭐⭐⭐ Good quality, good chair
*by A***Y on 15 September 2025*

Good quality, good chair

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-22*