Sit Smarter, Live Healthier

Stay Healthy with Sihoo's Dynamic Ergonomics

Sitting Too Long? Your Heart May Be at Risk

Spending most of the workday sitting is associated with higher cardiovascular risk. A large 2024 cohort study (481,688 adults) found that people who mostly sat at work had a 34% higher risk of cardiovascular death compared with those who mostly didn’t sit. Alternating between sitting and non-sitting at work wasn’t linked to higher risk, and adding ~15–30 minutes of daily physical activity may help offset the excess risk in predominantly seated workers.
Sitting Too Long? Your Heart May Be at Risk
Heart and circulatory system
Heart and circulatory system

Prolonged sitting puts a strain on the heart. It has been proven to increase the risk of cardiovascular disease.

Brain and concentration

Reduced blood flow impairs concentration and cognitive performance.

Neck pain

A forward-tilted head posture puts strain on the muscles of the cervical spine.

Tense shoulders

Rounded shoulders lead to chronic tension and discomfort.

Lower back

Compression of the lumbar spine can lead to disc problems.

hip flexor

Prolonged sitting causes the hip flexors to shorten and lose mobility.

Knee and ankle

Poor blood circulation impairs joint health in the long term.

DORO Series

Innovative ergonomic office chair

Inspired by the idea that chair and body should feel as one, DORO envelops the sitter with a flexible backrest and a breathable mesh seat. This creates a pleasantly natural seating comfort – and even during long workdays, the body remains noticeably relieved, so that fatigue doesn't even have a chance to set in.

DISCOVER DORO C300
Doro C300

Extendable, rotating footrest

The feet get a resting point – more relaxation for legs during long sessions.

Wide-angle headrest (3D adjustable)

Height/Rotation/Forward-Backward – relieves the neck in various sitting and lying positions.

Cloud-Mesh

Breathable and comfortable – less heat build-up, more comfortable focus in everyday life.

Pressure-equalizing seat cushion

More even pressure distribution – less numbness, more stable sitting.

Smart gravity mechanics

It makes leaning back and sitting up easier – supporting more frequent changes of position instead of sitting rigidly.

Smart gravity mechanicsDomino 3D lumbar support system

Provides support while sitting, follows the contours when leaning back – no gap in the lumbar region, noticeable relief.

105°–120°–135° tilt angle

Greater variability in hip angle – a more pleasant change between work and relaxation.

4D coupled armrests

Adjustable and synchronized when leaning back – arms remain supported, shoulders relax.

Chair Designed for Engineers, Designers, Gamers, and Back Pain Relief.

What We Measured

What We Measured
Sitting creates increased pressure in the pelvic and thigh area. High peak pressure can cause the following problems.
Pain in the buttocks, hips and lower back
Circulatory disorders
Fatigue from constantly changing seating position
Numbness and tingling
Reducing peak pressure improves seating comfort and noticeably reduces the strain on the body.

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.

Why choose Sihoo?

DORO C300
DORO C300
From £259.99 £339.99
Learn More
DORO S300
DORO S300
From £539.99 £799.99
Learn More
More chairs
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≤£1000
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≤£1300
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≥£1800
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≥£1400
Bionic Flexfit backrest
Bionic Flexfit backrest
Bionic Flexfit backrest
Bionic Flexfit backrest
Bionic Flexfit backrest
Bionic Flexfit backrest
Bionic Flexfit backrest
Dynamic support
Domino lumbar support Dynamic support
Dual dynamic lumbar support Dynamic support
Dynamic support
Dynamic support
Dynamic support
Dynamic support
Neck support
Integrated headrest Neck support
Integrated headrest Neck support
Neck support
Neck support
Neck support
Neck support
Integrated/split backrest
Integrated/split backrest
Integrated/split backrest
Integrated Integrated/split backrest
Integrated Integrated/split backrest
Integrated Integrated/split backrest
Integrated/split backrest
Backrest material
Mesh fabric Backrest material
Italian velvet, DuPont TPEE Backrest material
Thin sponge Backrest material
Thin sponge Backrest material
Thin sponge Backrest material
Backrest material
Maximum reclining angle
130° Maximum reclining angle
130° Maximum reclining angle
Not supported Maximum reclining angle
Thin sponge Maximum reclining angle
<130° Maximum reclining angle
<130° Maximum reclining angle
Polstermaterial
Mesh fabric Polstermaterial
Mesh fabric Polstermaterial
Sponge Polstermaterial
Mesh fabric Polstermaterial
Mesh fabric Polstermaterial
Polstermaterial
Upholstery inclination connection
Upholstery inclination connection
Upholstery inclination connection
Upholstery inclination connection
Upholstery inclination connection
Upholstery inclination connection
Upholstery inclination connection
Armrest
4D Armrest Armrest
6D Armrest Armrest
Armrest
Armrest
Armrest
Armrest
Footrest
Optional Footrest
Optional Footrest
Footrest
Footrest
Footrest
Footrest

Awards and Recognition

Our commitment to research, development and sustainability has earned international acclaim.

Sihoo’s Office Chair Is An Affordable Alternative To Herman Miller’s Classic Aeron.

The Sihoo C300 is an all-around well-developed office chair.

With the Sihoo Doro S100, Sihoo launches a model that combats back pain and makes prolonged sitting comfortable.

The Sihoo Doro C300 impresses with its sophisticated ergonomics, high level of comfort, and a modern design that fits seamlessly into the office and home.

The Doro-C300 Ergonomic Office Chair is a best-in-class option for comfort, but not in the way you’re probably used to quantifying chairs.

Sihoo's Doro-C300 ergonomic office chair is a game-changer for individuals who spend long hours sitting at their desks.

The Doro-C300 Sihoo is an Affordable and Comfortable Office Chair. Flexible Mesh for the Win.

Sihoo Doro-C300 is an excellent chair that is thoroughly recommendable to anyone looking for a new office staple.

The right product + good habits = double the health

Move every 60–90 minutes: Give your body a break! 1

Move every 60–90 minutes: Give your body a break!

Move every 60–90 minutes: Give your body a break! 2

Move every 60–90 minutes: Give your body a break!

Sit smartly: Perfect posture, happy spine! 3

Sit smartly: Perfect posture, happy spine!

Stand up, sit down, repeat – thanks to your height-adjustable desk! 4

Stand up, sit down, repeat – thanks to your height-adjustable desk!

Daily 10-minute boost: Stretch, walk and recharge your energy! 5

Daily 10-minute boost: Stretch, walk and recharge your energy!

What users are saying