This SIHOO B100 Pro review looks at a mesh office chair built for work sessions that shift between focused sitting and reclined breaks.
Its adaptive lumbar design, retractable footrest and adjustable armrests will appeal to buyers who want several ways to change position at a desk.
SIHOO B100 Pro Review Summary
The quick verdict
16,000+ ratings
Read Amazon ReviewsSIHOO B100 Pro
A feature-rich mesh chair for desk users who want adjustable lumbar support, a retractable footrest and flexible arm positioning.
- Dual-back design with elastic lumbar support that moves with the spine.
- Retractable footrest for stretching out during breaks.
- 4D armrests can be adjusted, rotated or flipped.
- Three recline angles: 110°, 125° and 135°.
Pros
- The moving dual-back lumbar design is intended to adapt as you shift posture.
- The retractable footrest adds a useful stretching and lounging option.
Consider before buying
- Buyers who want a padded seat should consider the mesh construction carefully; the seat and back are both full mesh.
- The chair supports up to 300 lbs, so buyers should confirm that capacity fits their needs before choosing it.
Read the full review summary
The B100 Pro combines a dual-back design that moves with the spine, a full-mesh seat and back, and a retractable footrest.
That mix suits people who spend long stretches at a desk and value the option to recline or stretch out during breaks.
Its strongest appeal is adjustability: the armrests can be adjusted, rotated or flipped, and the chair offers three recline angles.
Consider it if you want a single chair for desk work, study or gaming breaks; the footrest and recline functions matter less if you prefer a simpler upright chair.
The buying factors
SIHOO B100 Pro Scorecard
Editorial scores reflect listed features and buyer fit; they are not laboratory measurements or customer ratings.
Position flexibility
Three recline angles and armrests that adjust, rotate or flip support changes in posture across work and rest periods.
Lumbar design
The dual-back arrangement is designed to move with the spine, a useful fit for buyers who shift between leaning forward and sitting upright.
Break-time support
A retractable footrest gives the chair a practical lounge function for stretching out during breaks.
Breathable materials
Mesh covers both the back and seat, which may suit buyers who prioritize airflow in a desk chair.
Head and neck support
The 3D wide headrest is designed to support the neck during desk activities and reclining periods.
Weight capacity
A reinforced metal base and Class 4 SGS-certified gas lift support up to 300 lbs, giving buyers a clear stated capacity to check against their needs.
Key Features and Specifications of SIHOO B100 Pro
- Dual-back design with elastic lumbar support that moves with the spine.
- Retractable footrest for stretching out during breaks.
- 4D armrests can be adjusted, rotated or flipped.
- Three recline angles: 110°, 125° and 135°.
- Full-mesh seat and back promote airflow.
- Reinforced metal base and Class 4 SGS-certified gas lift; capacity up to 300 lbs.
- Includes a 36-month coverage period and 30-day returns.
Pros and Cons of SIHOO B100 Pro
Pros
- The moving dual-back lumbar design is intended to adapt as you shift posture.
- The retractable footrest adds a useful stretching and lounging option.
- Armrest movement and multiple recline positions let you tailor the setup.
- Mesh across the seat and back prioritizes airflow.
Consider before buying
- Buyers who want a padded seat should consider the mesh construction carefully; the seat and back are both full mesh.
- The chair supports up to 300 lbs, so buyers should confirm that capacity fits their needs before choosing it.
Who Should Buy SIHOO B100 Pro?
Good fit
Choose the B100 Pro if lumbar movement and adjustable positioning are priorities. Its dual-back support is intended to move with your spine, while its armrests can be adjusted, rotated or flipped to suit a preferred desk posture.
It also fits buyers who want work and relaxation functions in one chair. The retractable footrest and three recline angles make stretching out between tasks part of the design.
The full-mesh seat and back are worth considering if airflow is a priority, and the stated 300 lbs capacity offers a concrete fit check before purchase.
Who should skip it
Skip it if you specifically want a cushioned seat rather than mesh across both the seat and back. The breathable construction is a central design choice, so material preference should guide the decision.
Look elsewhere if your required weight capacity exceeds 300 lbs; the stated limit makes that a straightforward compatibility check.
SIHOO B100 Pro Review: How Its Work-and-Rest Design Fits
Lumbar movement for changing posture
The elastic lumbar support and dual-back layout are intended to move with the spine.
That makes the chair relevant to people who alternate between leaning forward to focus and sitting upright, though individual fit will still depend on body shape and preferred posture.
Reclining and stretching out
The footrest and recline settings give the B100 Pro a broader role than a chair used only for upright desk work.
Buyers who take seated breaks, game or watch movies at their desk may make more use of those features than someone who rarely reclines.
Mesh and desk setup considerations
Mesh across the seat and back favors airflow, while the armrests can be flipped to slide under a desk. Check your workspace dimensions and preferred seat feel before buying, especially if you generally choose padded surfaces.
Alternatives to SIHOO B100 Pro
Home Office Desk Chairs alternative
16,000+ ratings
Read Amazon ReviewsSIHOO M18 Ergonomic Office Chair
Choose the M18 if adjustable headrest and back support plus its stated capacity better match your priorities. Choose the B100 Pro if the retractable footrest and four-dimensional armrest movement are more useful for your work and break routine.
- The M18 offers seat-height, headrest, lumbar and back-support adjustments, with a capacity up to 150kg.
- The B100 Pro pairs adaptive dual-back lumbar support with a retractable footrest and 4D armrests, giving buyers several ways to change position or stretch out.
Is SIHOO B100 Pro Worth It?
The SIHOO B100 Pro is worth considering if you want a mesh office chair that combines adaptive lumbar support with recline, a retractable footrest and highly adjustable armrests.
Those features make it a plausible fit for desk users who also value stretching out during breaks.
Before buying, confirm that full mesh suits your seat preference and that the 300 lbs capacity meets your needs.
If both fit, the B100 Pro's mix of posture adjustments and lounge-oriented features is its clearest reason to choose it.
Your review at a glance
16,000+ ratings
Read Amazon ReviewsSIHOO B100 Pro
A feature-rich mesh chair for desk users who want adjustable lumbar support, a retractable footrest and flexible arm positioning.
- Dual-back design with elastic lumbar support that moves with the spine.
- Retractable footrest for stretching out during breaks.
- 4D armrests can be adjusted, rotated or flipped.
- Three recline angles: 110°, 125° and 135°.