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B300 Pro Ergonomic Office Chair

B300 Pro Ergonomic Office Chair

4.4(32 ratings)

Best price now

$239.99at Official US Sihoo StoreChecked Nov 12

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Price facts

  • Last seen at $239.99 at Official US Sihoo Store on Nov 12.

Our take on the B300 Pro Ergonomic Office Chair

The Sihoo B300 Pro is a mesh ergonomic office chair built for long work and gaming sessions. Its standout is adjustability: 4D lumbar support, 6D armrests, a 3D headrest, a backrest that moves 2.2 inches and a seat that slides 2 inches. The weight-adaptive recline tilts with your body rather than against a fixed spring. It suits taller and average-height users from 5'1" to 6'3" who want to dial in fit. Against simpler mesh chairs it offers far more tuning points, though that complexity and its size are the main trade-offs.

Best forTaller users up to 6'3"People who want fine-tuned lumbar and arm supportAll-day desk workers and gamersBuyers comparing it to premium ergonomic chairs
Pros
  • 4D lumbar support adjusts in several directions
  • 6D armrests cover height, depth, width and angle
  • 3D headrest is wide and adjustable
  • Weight-adaptive recline follows your body
  • Breathable mesh back and seat for long sessions
  • Backrest and seat depth both adjust
Cons
  • Many adjustment points take time to dial in
  • Large frame suits bigger users better than small ones
  • Mesh seats feel firmer than padded ones to some
  • Headrest can feel intrusive when reclining

B300 Pro Ergonomic Office Chair prices at every store

  • Official US Sihoo StoreNew

    In stockReturn policy

    $239.99Checked Nov 12
    Visit Official US Sihoo Store

What reviewers say

  • 4.4 / 532 ratings

Rated 4.4 out of 5 from 32 ratings, owners largely praise the adjustability and lumbar support. Complaints center on setup time and the firm mesh seat.

What people mention
  • AdjustabilityPraisedOwners value the many tuning points, especially the lumbar and armrests.
  • ComfortPraisedReviewers find it supportive through long work sessions.
  • SetupMixedSome say assembly and dialing in the settings take patience.
  • Seat firmnessCriticisedA few find the mesh seat firmer than expected.
  • SizeMixedThe large frame fits taller users well but feels bulky to others.

About the B300 Pro Ergonomic Office Chair

The Sihoo B300 Pro is an ergonomic office chair for work, gaming, and home offices. It is designed for users from 5'1" to 6'3".

Support comes from a 4D MicroFit lumbar support and a 3D ultra-wide headrest. The backrest adjusts in height by 2.2". The seat depth adjusts by 2". The 6D armrests are adjustable, and the recline adapts to the user's weight.

The backrest uses breathable performance mesh.

Recommended height
5'1" to 6'3"
Lumbar support
4D MicroFit
Backrest
2.2" height adjustment
Armrests
6D adjustable
Headrest
3D ultra-wide
Seat depth
2" adjustment
Recline
Weight-adaptive
Material
Breathable performance mesh

Questions and answers

Who is the B300 Pro designed for?
Sihoo lists it for users from 5'1" to 6'3". The deep adjustability favors people who want to fine-tune lumbar and arm support.
How is it different from the standard B300?
The Pro adds the 4D MicroFit lumbar support, 6D armrests and 3D headrest, giving more adjustment points than the base model.
Does the recline have a lock?
The recline is weight-adaptive, tilting with your body weight. Check the listing for the exact recline range and any lock positions.
Is the mesh seat comfortable for long days?
The breathable mesh stays cool, but some owners describe the seat as firm. It suits people who prefer support over soft padding.
What is in the box?
The chair ships unassembled with the parts and tools for setup. Allow time to assemble and adjust it.
Where is the B300 Pro Ergonomic Office Chair cheapest?
At Official US Sihoo Store, for $239.99, as of our latest check.
What do buyers say about the B300 Pro Ergonomic Office Chair?
Rated 4.4 out of 5 from 32 ratings.

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