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New Arrival → C300 Pro V2

Sit Better. Live Healthier.

Ergonomic support for a pain-free back and natural posture—every day.

Sitting Too Long? Your Heart May Be at Risk

Spending most of the day sitting is linked to higher cardiovascular risk. In a large 2024 cohort (481,688 adults), people who mostly sat at work had a 34% higher risk of cardiovascular death compared with those who mostly didn’t sit. Alternating sitting and non-sitting wasn’t linked to higher risk, and adding 15–30 minutes of daily activity helped offset it.
Sitting Too Long? Your Heart May Be at Risk
Heart & Circulation

Prolonged sitting puts extra strain on your heart and has been shown to increase the risk of cardiovascular disease.

Weak Glutes

Too little activity can weaken your glute muscles, which can negatively affect your posture and stability.

Brain & Focus

Reduced blood flow can hurt your ability to concentrate and may lower cognitive performance.

Neck Pain

A forward head posture strains the muscles along your cervical spine.

Tight Shoulders

Rounded shoulders can lead to ongoing tension and discomfort.

Lower Back

Compression in the lumbar spine can contribute to disc issues over time.

Hip Flexors

Sitting too long can shorten the hip flexors and reduce mobility.

Knees & Ankles

Poor circulation over time can negatively affect joint health.

DORO Series

An Innovative Ergonomic Office Chair

Long periods of sitting put stress on the body in multiple areas—that’s exactly why DORO follows the principle of “movement over staying still.” With a responsive backrest, breathable Cloud Mesh, and intelligent support features, the DORO C300 helps address the 8 sitting hotspots shown above—point by point, in everyday use.

DISCOVER DORO C300
Doro C300

Extendable, Rotating Footrest

Gives your feet a stable place to rest, reducing leg fatigue during long work or break sessions.

Wide Range Adjustable Headrest

Supports your head in more positions to ease neck fatigue and reduce forward-head strain.

Cloud Mesh (Breathable Knit)

Cool, breathable comfort helps reduce heat buildup and distraction so it’s easier to stay focused.

Pressure-Relief Seat Cushion

Spreads pressure more evenly to reduce numbness and support a more stable, balanced sitting position.

Smart Gravity-Sensing Mechanism

Makes recline-and-return feel effortless, encouraging more posture changes instead of staying fixed for hours.

Domino 3D Lumbar Support System

Supports when upright and “follows” your back when reclining—helping prevent gaps and reducing lumbar pressure.

105° / 120° / 135° Recline Angles

Lets you open up the hip angle and shift positions—more relief than staying in a constant 90° posture.

4D Synchronized Armrests

Adjust in multiple directions and move with the backrest, keeping your arms supported so shoulders can relax.

Designed to meet the high demands of professionals and gamers.

What We Measured

What We Measured
When you sit, pressure builds up around the pelvis and thighs. High peak pressure can contribute to:
Pain in the glutes, hips, and lower back
Reduced circulation
Fatigue from constantly shifting positions
Numbness and tingling
By reducing peak pressure, sitting feels more comfortable—and the strain on your body can noticeably decrease.

Sihoo Floating Support Technology — Noticeably Less Strain on Your Body

* Data based on test results from the Sihoo Ergonomics Application Association.* Data based on test results from the Sihoo Ergonomics Application Association.
Chair Finder

Find the Right Sihoo Chair for the Way You Work

Answer two simple questions and compare up to three recommended chairs before you shop.

What best describes your daily work?

This helps us understand whether you need basic support, stronger adjustability, or premium long-hour ergonomics.

⌂

Home Office

Meetings, emails, daily work, and general desk use.

◷

Long Hours

Focused workdays, 6–8+ hours, and heavier sitting needs.

✦

Creative / Tech

Design, engineering, programming, and deep focus sessions.

$

Budget Friendly

Practical ergonomic support with stronger value focus.

What kind of support do you need?

Choose the discomfort or support need that matters most to your sitting experience.

↕

My back feels uncomfortable

For users who want broader support across the back.

◒

My lower back feels sore

For users who need stronger lumbar and waist support.

⌁

My shoulders feel strained

For users who need better upper-body and arm positioning.

☼

I get hot while sitting

For users who want breathable comfort during work.

Recommended for You

We selected three chairs based on your answers. You can shop directly or choose any three models below to compare.

Compare Key Differences

Select up to 3 chairs. Recommended chairs are selected by default.

You can compare up to 3 chairs.

The Right Product + Good Habits = Double the Wellness

Move every 60–90 minutes: give your body a quick break. 1

Move every 60–90 minutes: give your body a quick break.

In just 5 minutes, the Sihoo lumbar pillow helps your body relax. 2

In just 5 minutes, the Sihoo lumbar pillow helps your body relax.

Sit smart: better posture, a happier spine. 3

Sit smart: better posture, a happier spine.

Stand, sit, repeat—made easy with your height-adjustable desk. 4

Stand, sit, repeat—made easy with your height-adjustable desk.

10-minute daily boost: stretch, take a short walk, and recharge. 5

10-minute daily boost: stretch, take a short walk, and recharge.

Awards & Recognition

Our efforts in R&D and sustainability are recognized worldwide.

The anti-gravity mechanism is a genuine game-changer. It creates a weightless sensation that makes long hours at the desk feel almost effortless.

Finally, a chair that truly understands your back. The dynamic lumbar support follows your every move specifically to eliminate that lower back strain we all hate.

A masterclass in engineering that challenges chairs twice its price. The floating support system adapts so smoothly that you forget you are even sitting.

The perfect sweet spot between premium ergonomics and value. It hits all the right notes for comfort and offers support exactly where you need it most.

This product is a sweet middle ground that combines the best features.

Intuitive, breathable, and incredibly supportive. The C300 turns a standard home office setup into a professional workspace where you can actually focus.

What Real Users Are Saying

Linus Tech Tips

The Doro C300 Pro V2 was built with comfort in mind. Its DynaCore system gives you full-body dynamic support—not just in the back, but in the headrest, lumbar, and armrests too. And with SyncroFlex, the chair moves with you, so you’re not constantly readjusting your fit.

Linus Tech Tips
Linus Tech Tips Top Tech Review Channel
TechUtopia

Sitting is not a static position, you're constantly adjusting, moving, leaning, and shifting overall without you even realizing it. And so, the question here is not is this chair comfortable, but rather does it stay comfortable while you move. Full body adaptive support will help you.

TechUtopia
TechUtopia Product Reviewer

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Unlock $20 OFF

Use your Prime Day code at checkout.

Prize Draw

Prize Draw

Purchase for a chance to win rewards.

Bulk Order Offer

Extra savings for multi-chair orders.

120-Day Money-Back Promise

Try it longer during Prime Day.

Shop Now

Prime Day Is Underway

Up to 60% Off & Enjoy Exclusive Prime Day Benefits
Shop Now
Unlock $20 OFF

Unlock $20 OFF

Use your Prime Day code at checkout.

Prize Draw

Prize Draw

Purchase for a chance to win rewards.

Bulk Order Offer

Extra savings for multi-chair orders.

120-Day Money-Back Promise

Try it longer during Prime Day.