This SIHOO B100 Pro review looks at an ergonomic office chair built around adaptive lumbar support, a retractable footrest and adjustable recline.
It may suit home-office buyers who want a chair that can shift between focused desk work and relaxation breaks.
SIHOO B100 Pro Review Summary
The quick verdict

16,000+ ratings
Read Amazon ReviewsSIHOO B100 Pro
A mesh office chair with adaptive lumbar support and a retractable footrest for buyers who want adjustable work and recline positions.
- Adaptive lumbar support with a dual-back design that moves with the spine.
- Retractable footrest for stretching out during breaks.
- 4D armrests can adjust, rotate or flip up.
- Three lockable recline angles: 110°, 125° and 135°.
Pros
- Adaptive lumbar support and a dual-back design accommodate shifting positions.
- A retractable footrest makes it easier to stretch out during seated breaks.
Consider before buying
- The retractable footrest and reclining features may be unnecessary if you want a simple chair solely for upright desk work.
- Check the 300-lb support limit against your needs before choosing this chair.
Read the full review summary
The B100 Pro combines a dual-back design with adaptive lumbar support, a full-mesh seat and back, and a retractable footrest.
That mix makes it a versatile option for a home office where the same chair may serve for desk sessions, gaming or short breaks.
It is best suited to buyers who value adjustability and a recline option in a desk chair.
Its up-to-300-lb support rating and 36-month coverage are useful buying considerations, while the wide headrest and plush cushion are intended to support longer seated sessions.
The buying factors
SIHOO B100 Pro Scorecard
Editorial scores reflect listed features and buyer fit; they are not laboratory measurements or customer ratings.
Posture adjustability
Adaptive lumbar support and a dual-back design are paired with 4D armrests, giving buyers several ways to adjust their sitting position.
Recline flexibility
Three lockable recline angles support a shift from upright work to more relaxed breaks.
Break-time support
The retractable footrest offers a place to stretch out during a break without leaving the chair.
Breathable construction
A mesh back and seat favor airflow, which may appeal to buyers who prefer mesh for extended desk sessions.
Headrest and cushion
The widened cushion and ultra-wide 3D headrest add support features for seated work and calls.
Support and coverage
The chair has a stated support capacity up to 300 lbs and 36-month coverage, relevant details for buyers weighing capacity and ownership terms.
Key Features and Specifications of SIHOO B100 Pro
- Adaptive lumbar support with a dual-back design that moves with the spine.
- Retractable footrest for stretching out during breaks.
- 4D armrests can adjust, rotate or flip up.
- Three lockable recline angles: 110°, 125° and 135°.
- Full-mesh back and seat promote airflow.
- Support capacity up to 300 lbs; 36-month coverage and 30-day returns.
Pros and Cons of SIHOO B100 Pro
Pros
- Adaptive lumbar support and a dual-back design accommodate shifting positions.
- A retractable footrest makes it easier to stretch out during seated breaks.
- 4D armrests and lockable recline allow multiple positioning choices.
- Mesh across the back and seat promotes airflow.
- The stated capacity and coverage provide useful ownership details to consider.
Consider before buying
- The retractable footrest and reclining features may be unnecessary if you want a simple chair solely for upright desk work.
- Check the 300-lb support limit against your needs before choosing this chair.
- If chair fit is a priority, confirm the seat dimensions and adjustment ranges before buying.
Who Should Buy SIHOO B100 Pro?
Good fit
Choose the B100 Pro if you want a mesh desk chair that can move between work and relaxation. Its adaptive lumbar support, footrest and lockable recline make the chair's range of use a central part of its appeal.
It also makes sense for buyers who like adjustable arm positioning and a mesh seat and back. Consider the up-to-300-lb capacity and review the coverage terms to ensure they suit your expectations.
Who should skip it
Skip it if you want a basic upright chair and have little use for a footrest or recline.
Those features are a prominent part of the B100 Pro's design, so buyers seeking a simpler setup may not value what it adds.
Look elsewhere if your needs exceed the chair's stated support capacity of 300 lbs.
SIHOO B100 Pro: How Its Work-and-Relaxation Design Fits
A lumbar design for changing positions
The dual-back construction is paired with elastic lumbar support that moves with the spine. That design aims to accommodate forward-leaning focus as well as upright sitting, which may suit buyers who change posture throughout the day.
Recline and footrest for breaks
The chair combines a retractable footrest with three lockable recline angles. Together, these features make it easier to set up a more relaxed position for a short pause, gaming or watching a movie after work.
Mesh, cushion and headrest
The full-mesh seat and back promote airflow, while a widened cushion and ultra-wide 3D headrest add further support features. Buyers who prioritize mesh should still consider whether the chair's shape and dimensions fit their body and desk setup.
Capacity and ownership terms
The stated support capacity is up to 300 lbs, and coverage is 36 months with 30-day easy returns. Check the current purchase terms and confirm the capacity is appropriate for the intended user before ordering.
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 seat height and back support are priorities and its 150kg capacity suits your needs; choose the B100 Pro if a retractable footrest and 4D armrests matter more.
- The M18 has adjustable seat height, headrest, lumbar support and back support, plus a stated capacity up to 150kg.
- The B100 Pro pairs adaptive lumbar support with a retractable footrest and 4D armrests, making it a fit for buyers who want both positioning choices and a place to stretch out.
Is SIHOO B100 Pro Worth It?
The SIHOO B100 Pro is worth considering if you want an ergonomic mesh office chair with adaptive lumbar support, adjustable recline and a retractable footrest.
Those features give it a clear role for buyers who want their desk chair to serve for focused work and relaxed breaks.
Before buying, check that the up-to-300-lb support capacity and chair dimensions suit the intended user. If you do not expect to use the footrest or recline, its most distinctive features may add little to your day-to-day setup.
Your review at a glance

16,000+ ratings
Read Amazon ReviewsSIHOO B100 Pro
A mesh office chair with adaptive lumbar support and a retractable footrest for buyers who want adjustable work and recline positions.
- Adaptive lumbar support with a dual-back design that moves with the spine.
- Retractable footrest for stretching out during breaks.
- 4D armrests can adjust, rotate or flip up.
- Three lockable recline angles: 110°, 125° and 135°.