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).

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

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

🧠Intelligent gravity tilt mechanism

🪑Ergonomic 3D adjustable armrests

🛡️BIFMA & TUV safety certified

R36986

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered 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 South Africa.

Secure transaction

Description

🪑 Elevate your workspace with the chair that works as hard as you do!

SMART GRAVITY TILT - Effortlessly recline up to 20° with weight-adaptive resistance—work hard, relax harder.
BREATHABLE MESH COMFORT - Stay cool and comfy during marathon work sessions with premium airflow mesh seating.
UNIVERSAL FIT FOR ALL HEIGHTS - 4-position adjustable backrest and headrest ensure ergonomic support tailored to you.
BUILT TO LAST CERTIFIED SAFE - Tested to the highest global standards with SGS Class 4 cylinders and a 3-year warranty.
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 featuring fully adjustable 3D armrests, headrest, and lumbar support. Its intelligent gravity tilt mechanism adapts to your weight for smooth reclining up to 20°, while breathable mesh materials keep you cool. Certified by BIFMA and TUV for safety and durability, it supports up to 150 kg and comes with a 3-year warranty—perfect for professionals seeking comfort and health-conscious posture support during long workdays.

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	#67,385 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #192 in Home Office Desk Chairs
Brand Name	SIHOO
Chair Backrest Width	21.26 inches
Color	Black
Customer Reviews	4.1 4.1 out of 5 stars (1,327)
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 Highlight	Dynamic Lumbar Support for Home Office Chair, Adjustable Backrest Desk Chair, Swivel Big & Tall Computer Chair, Black
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
Number of Items	1
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

Common Questions

Are the products genuine and authentic?+

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.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

R36986

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered 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 South Africa.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Suresh K.

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

4 days ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

View all Trustpilot reviews