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SIHOO · Office Chairs

SIHOO Doro S300

SIHOO · Brand founded 2011 · Shenzhen, China

Home offices wanting soft mesh, split lumbar support and a recline mechanism.

$999.99

  • Headrest: Soft, integrated headrest
  • Up to 330 lb
  • 3-year warranty
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Check price at SIHOO ↗

Summary

SIHOO's top chair, built around a counterbalanced recline and wing-shaped lumbar pads.

Best for

  • People who recline often; the back locks at 100°, 110° or 130°.
  • Heights within SIHOO's stated 5'0" to 6'3" range.
  • Buyers who want many armrest adjustments; the 6D arms also tilt-lock.
  • Those who like a headrest built into the backrest rather than bolted on.

Good to check first

  • The headrest is built into the backrest; raise the upper back in five steps to place it.
  • Armrest height moves 6.5 cm (2.56 in), so check it against your desk height.
  • Returns need the chair unused and in its original packaging, so keep the box until you are sure.

The trade-off

A distinctive recline and lumbar system, with assembly needed and a 3-year warranty.

Value check

Lists at $999.99 at SIHOO's US store.

Price
$999.99
Load capacity
330 lb
Warranty
3 years

What SIHOO highlights

  • Anti-Gravity recline

    The recline mechanism uses aerospace-grade materials and balances the chair as you lean back. SIHOO describes the feel as a weightless recline.

  • Dual dynamic lumbar

    Two wing-shaped lumbar pads adjust to your body and posture. Their angle can be fine-tuned between 90° and 105°.

  • 6D armrests

    The armrests move up and down, left and right, front and back, and inward and outward. They also tilt-lock and move with the recline.

  • Integrated headrest

    The soft headrest is part of the backrest, which adjusts in five levels. SIHOO says you can raise it to rest or lower it for more back support.

  • Velvet mesh

    The seat and back use an Italian velvet mesh with DuPont TPEE. SIHOO presents it as soft and breathable.

As described by SIHOO on its official pages; not a Chairpedia assessment.

Before you buy

Fit (official)

  • Designed for users 5'0"–6'3" (150–190 cm).
  • Seat height 47–55.5 cm (18.5–21.9 in).
  • Rated to 330 lb (US store).

Delivery and setup

  • Needs assembly; SIHOO provides installation guides.
  • Weighs 57.12 lb.
  • 3-year warranty.

Returns (official policy)

  • SIHOO store: 30-day returns from delivery, return shipping free.
  • The chair must be unused and in its original packaging.

Sources: SIHOO US official store, Doro S300 ↗ (checked Oct 11, 2026) · SIHOO UK official store, Doro S300 ↗ (checked Oct 11, 2026) · SIHOO refund policy ↗ (checked Oct 11, 2026)

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Specs

Size and fit
Sizes
42–49 in
Recommended user height
5'0"–6'3"
Seat height
47–55.5 cm
Seat depth
40–47 cm
Seat width
51.5 cm
Load capacity
330 lb (150 kg)
Adjustments
Recline
: 100°, 110°, 130°
Arms
6D coordinated armrests (up and down, left and right, front and back, inward and outward, with tilt-lock of armrests, and synchronized recline)
Lumbar support
Dual dynamic lumbar support; angle 90°-105° fine-tuned with the gas lift
Headrest
Soft, integrated headrest; upper backrest adjusts in 5 levels
Build and warranty
Warranty
3 years
Chair weight
26.2 kg
Made in
China (Foshan); SIHOO states this for all its products

About SIHOO

Founded
2011
Based in
Shenzhen, China
Manufacturing
Foshan, China

SIHOO launched its brand in 2011 and opened an ergonomics museum in 2012. It set up dedicated research facilities in 2016, according to its own timeline.

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Questions

How much does the SIHOO Doro S300 cost?

It costs $999.99 at the SIHOO US Official Store (Black and White), checked Oct 2026.

What is the SIHOO Doro S300's weight capacity?

It is rated for 330 lb for the Doro S300 (US official ), according to SIHOO's official specifications.

Does the SIHOO Doro S300 have a headrest?

Yes. The official specifications list: Soft, integrated headrest.

What sizes or versions of the SIHOO Doro S300 are there?

It comes in general Dimensions: 28"W x 28"D x 42"-49"H.

Where can I buy the SIHOO Doro S300?

You can buy it from Amazon, the SIHOO US Official Store or Amazon (2-pack, Black). Check the configuration, price and return terms before ordering.

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Specs and prices come from the brand sources listed under Specs and next to the price; User Insights link to their originals. Confirm the exact configuration, seller and price before buying. Editorial policy

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