Can you help me understand the lumbar support function and other adjustment functions of this chair?

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.

Has anyone tried this chair comfortable, how about the lumbar support?

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.

What is the difference between this chair and your M18?

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.

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?

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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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

Product ID: 534917752

Details

Brand
SIHOO
Color
Black
Material
Mesh
Product Dimensions
15.35"D x x
Size
Pack of 1

🌀Dynamic auto lumbar support

🪑Ergonomic 3D adjustable armrests

⚖️Intelligent gravity tilt mechanism

¥257496

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Description

🪑 Elevate your workday with the chair that moves with you — comfort meets innovation!

BIG TALL FRIENDLY BUILD - Robust stainless steel frame supports up to 150kg, perfect for diverse body types and extended use.
TAILORED COMFORT IN EVERY ANGLE - 3D adjustable headrest & armrests adapt seamlessly to your posture for all-day support.
EFFORTLESS MOVEMENT RELAXATION - Swivel base with 20° tilt and auto weight-adjusted resilience lets you flow between focus and breaks.
BREATHABLE MESH MEETS MODERN DESIGN - Sleek black mesh seat and backrest keep you cool and stylish during marathon work sessions.
BACKED BY SCIENCE CERTIFIED FOR SAFETY - BIFMA & TUV certified with SGS Class 4 cylinders for unmatched durability and peace of mind.

The SIHOO Doro C300 is a cutting-edge ergonomic office chair featuring ultra-soft 3D adjustable armrests, dynamic auto-adaptive lumbar support, and an intelligent gravity tilt mechanism. Designed for professionals who demand comfort and durability, it supports up to 150kg with certified safety standards and breathable mesh for long hours of productivity and relaxation.

Specifications

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	#59,894 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #171 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 (1,318)
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

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¥257496

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

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