This SIHOO B100 Pro review looks at a mesh office chair built for varied desk postures, with adaptive lumbar support and a retractable footrest for breaks.
SIHOO B100 Pro Review Summary
The quick verdict

16,000+ ratings
Read Amazon ReviewsSIHOO B100 Pro
A mesh office chair for desk users who want adjustable lumbar support, flexible armrests and a retractable footrest for breaks.
- Elastic lumbar support uses a dual-back design that moves with the spine.
- Retractable footrest for stretching out during breaks.
- Four-dimensional armrests adjust, rotate and flip; the chair has three lockable recline angles: 110°, 125° and 135°.
- Wide cushion and 3D ultra-wide headrest provide seat and neck support.
Pros
- Dual-back adaptive lumbar support is designed to move with changing desk postures.
- Retractable footrest makes it easier to stretch out for a short break.
Consider before buying
- Its range of adjustable parts and reclining positions may be more chair than someone needs for simple upright desk use.
- The stated capacity is up to 300 lbs, so buyers should confirm that limit suits their needs.
Read the full review summary
The B100 Pro suits a home office where one chair needs to cover focused desk work and reclined breaks.
Its elastic lumbar support is paired with a dual-back design, while the footrest pulls out when you want to stretch your legs.
Adjustable armrests, three recline angles and a wide headrest provide several ways to adapt the chair to your posture.
Full mesh across the back and seat may appeal to people who prefer an airflow-focused design, while the 300 lb capacity helps define its intended load range.
The buying factors
SIHOO B100 Pro Scorecard
Editorial scores reflect listed features and buyer fit; they are not laboratory measurements or customer ratings.
Posture adjustment
The dual-back lumbar design moves with the spine, and the armrests can be adjusted, rotated or flipped to suit different desk positions.
Recline flexibility
Three lockable recline angles cover upright work and more relaxed breaks, giving the chair a broader range of positions than a fixed-back design.
Break-time support
The retractable footrest adds a practical way to stretch out during a pause without needing a separate foot support.
Airflow-focused design
Mesh covers both the back and seat, so the construction prioritizes airflow across more of the chair than a mesh-back-only approach.
Head and neck support
A wide, three-dimensional headrest is included for neck support during desk tasks and reclined use.
Stated load capacity
The reinforced metal base and Class 4 SGS-certified gas lift are paired with a stated support limit of 300 lbs, which gives buyers a useful fit check.
Key Features and Specifications of SIHOO B100 Pro
- Elastic lumbar support uses a dual-back design that moves with the spine.
- Retractable footrest for stretching out during breaks.
- Four-dimensional armrests adjust, rotate and flip; the chair has three lockable recline angles: 110°, 125° and 135°.
- Wide cushion and 3D ultra-wide headrest provide seat and neck support.
- Full-mesh back and seat promote airflow.
- Reinforced metal base and Class 4 SGS-certified gas lift support up to 300 lbs.
- Coverage lasts 36 months, with 30-day returns and support response within 24 hours.
Pros and Cons of SIHOO B100 Pro
Pros
- Dual-back adaptive lumbar support is designed to move with changing desk postures.
- Retractable footrest makes it easier to stretch out for a short break.
- Armrests can adjust, rotate or flip, and the recline locks at three angles.
- Mesh on both the seat and back gives airflow a central role in the chair's design.
- The reinforced base and certified gas lift have a stated capacity up to 300 lbs.
Consider before buying
- Its range of adjustable parts and reclining positions may be more chair than someone needs for simple upright desk use.
- The stated capacity is up to 300 lbs, so buyers should confirm that limit suits their needs.
- For regular outdoor calls, check microphone performance in windy conditions before buying; for desk work, the chair has a retractable footrest for gaming sessions or movie breaks.
Who Should Buy SIHOO B100 Pro?
Good fit
Choose the B100 Pro if you want one office chair for focused work and reclining breaks. The footrest, lockable recline and flexible armrests support a setup where posture changes throughout the day.
It also fits buyers who prefer mesh across both seat and back, or who want a broad headrest alongside adaptive lumbar support.
Consider your space and routine: this chair emphasizes multiple adjustments and relaxed seating as well as desk posture.
Who should skip it
Skip it if you need a chair rated above 300 lbs; its stated support limit may not match your requirements.
A simpler fixed-position task chair may be a better fit if you have no use for a retractable footrest, reclining breaks or several armrest adjustments.
SIHOO B100 Pro Chair Analysis
Lumbar support for changing postures
The elastic lumbar support is paired with a dual-back structure intended to move with the spine.
That design is relevant for people who alternate between leaning forward, sitting upright and shifting during desk work, though the fit will still depend on individual proportions and adjustment preferences.
A chair that includes break positions
The footrest and three lockable recline angles make relaxation part of the design rather than an add-on.
This can be useful in a home office that doubles as a place to take short pauses, but buyers should check that the reclining footprint works with their desk and room layout.
Mesh coverage and head support
Mesh covers both the back and seat, and the wide headrest adds a neck-support surface for upright tasks or reclined use.
Buyers who prefer a softer upholstered feel may want to consider whether an all-mesh contact surface suits their sitting preferences.
Capacity and everyday setup
The chair's reinforced metal base and Class 4 gas lift have a stated capacity up to 300 lbs.
The listed coverage runs 36 months, and the return period is 30 days, giving buyers defined service windows to consider alongside dimensions, desk clearance and their own fit needs.
Alternatives to SIHOO B100 Pro
Home Office Desk Chairs alternative

16,000+ ratings
Read Amazon ReviewsSIHOO M18 Ergonomic Office Chair
Choose the B100 Pro if a retractable footrest and four-dimensional armrests suit your work-and-break routine. Choose the M18 if adjustable seat height and back support are priorities and its 150kg capacity fits your requirements.
- The M18 has adjustable seat height, headrest, lumbar support and back support, plus a capacity up to 150kg.
- Its breathable mesh back and 2D armrests offer another support and adjustment package.
- The B100 Pro combines a dual-back lumbar design with a retractable footrest and four-dimensional armrests, making it the more break-oriented configuration for buyers who value stretch-out and adjustment options.
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 a footrest, adjustable armrests and lockable recline.
Those features give it a clear role for buyers who alternate between work and relaxed breaks.
Before buying, check that its 300 lb capacity, mesh seat feel and reclining footprint suit your body and workspace.
If those points fit, the combination of seat and back mesh, broad headrest and multiple adjustments makes it a flexible home-office option.
Your review at a glance

16,000+ ratings
Read Amazon ReviewsSIHOO B100 Pro
A mesh office chair for desk users who want adjustable lumbar support, flexible armrests and a retractable footrest for breaks.
- Elastic lumbar support uses a dual-back design that moves with the spine.
- Retractable footrest for stretching out during breaks.
- Four-dimensional armrests adjust, rotate and flip; the chair has three lockable recline angles: 110°, 125° and 135°.
- Wide cushion and 3D ultra-wide headrest provide seat and neck support.