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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

A study analyzing posture and musculoskeletal pain in 1,200 adults (average age 38) found that sitting with forward head posture for over 4 hours daily significantly raises the risk of chronic neck and shoulder pain. Over a 2-year follow-up, 37% developed moderate to severe neck pain, 29% reported persistent shoulder stiffness, and 18% experienced radiating arm discomfort. Published in Journal of Orthopaedic & Sports Physical Therapy (2023), the research indicates that even with regular stretching, prolonged static sitting posture still exacerbates musculoskeletal strain. Replacing 15 minutes of continuous sitting with posture-adjusting movements may reduce pain risk by up to 40%.
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.

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.

Designed specifically for engineers, designers, gamers, and anyone looking to improve their posture, this chair delivers ultimate comfort all day long.

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.

DORO Series

An Innovative Ergonomic Office Chair

Inspired by the idea that chair and body should feel like one, the DORO gently supports you with a responsive, moving backrest and a breathable mesh seat. The result is a naturally comfortable sitting experience—and even on long workdays, your body feels noticeably more supported, so fatigue doesn’t take over.

DISCOVER DORO C300
Doro C300

Dynamic Lumbar Support

Equipped with the BM Tracking System, the chair intuitively follows your every move, providing continuous, proactive support to your lower back throughout the day.

Adjustable Recline

Find your perfect posture with three customizable tilt angles (110°, 120°, and 130°) designed for everything from focused work to a relaxed lounge.

4D Interactive Armrests

Experience seamless support with padded PU armrests. These are adjustable in three directions and feature dynamic synchronization, moving in tandem with the backrest as you recline.

Heavy-Duty 350-Grade Steel Frame

Built for durability, the high-strength steel frame has passed rigorous stress and stability tests. It reliably supports a maximum weight capacity of 300 lbs (135 kg).

Silent PU Casters

Enjoy smooth, whisper-quiet gliding on any surface. These floor-friendly rollers are designed to move effortlessly without leaving marks or scratches.

Why Choose Sihoo?

DORO C300
DORO C300
From $279.00 $559.00
DORO S300
DORO S300
From $599.00 $999.00
Competitor A
Competitor A
≥$900
Competitor B
Competitor B
≥$1800
Competitor C
Competitor C
≥$1400
Other chairs
Other chairs
≥$1300
Bionic FlexFit Backrest
Dynamic Support
Domino lumbar support
Active dynamic support for full-body alignment
Neck Support / Headrest
Integrated Headrest
Integrated / Split Backrest
Integrated
Integrated
Integrated
Integrated
Backrest Material
Mesh Fabric
Italian velvet, DuPont™ TPEE
Thin Foam Padding
Thin Foam Padding
Thin Foam Padding
Maximum Recline Angle
130°
130°
Unknown
<130°
<130°
Cushion Material
Mesh Fabric
Mesh Fabric
Foam Padding
Mesh Fabric
Mesh Fabric
Seat Tilt Mechanism
Armrests
4D Adjustable Armrests
6D Adjustable Armrests
Footrest
Optional
Optional

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 Users Are Saying