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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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

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

Product ID: 534917752

Details

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

🔄360° swivel with smooth tilt

🪑Ergonomic 3D adjustable armrests

🛡️BIFMA & TUV safety certified

5260.54 DT

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Description

🖥️ Sit Smart, Work Strong — Elevate Your Home Office Game!

DYNAMIC LUMBAR SUPPORT - Auto-adaptive backrest with triangular elastic frame cradles your spine for all-day comfort.
SMART GRAVITY MECHANISM - Weight-sensitive tilt with 3 reclining positions lets you work hard and relax harder.
BUILT FOR BIG TALL PROS - Robust stainless steel frame and 150kg capacity designed to support diverse body types with ease.
CERTIFIED SAFETY DURABILITY - Passed rigorous BIFMA & TUV tests with SGS Class 4 gas lift—confidence in every sit.
POSTURE PERFECT 3 D ADJUSTABILITY - Headrest, lumbar, and armrests move in sync for a custom fit that supports your every move.

The SIHOO Doro C300 is a cutting-edge ergonomic office chair engineered for professionals seeking superior comfort and posture support. Featuring fully adjustable 3D armrests, an auto-adaptive lumbar system, and a smart gravity tilt mechanism, it adapts seamlessly to your body’s needs. Certified by BIFMA and TUV for safety and durability, this chair supports up to 150kg and swivels 360°, making it the ultimate upgrade for your home or office workspace.

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	#70,256 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #182 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 (1,316)
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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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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5260.54 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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Great price for an authentic product. Fast international shipping too!

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