

The Sihoo B100 Pro is a mesh-back ergonomic office chair built around adjustable lower-back support, 4D armrests that flip up, and a recline that stops at 135 degrees. Its headrest, lumbar pad and seat depth adjust, so it fits a wider range of bodies than fixed-frame chairs at the same tier. Buyers rate it very highly, and the common praise is the lumbar support and the armrest flexibility. The trade-offs are typical of mesh chairs: a firmer seat and assembly that takes some time.
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Owners rate the B100 Pro very highly and most praise the lumbar support, the armrest range and the build. Complaints center on the firm seat and the time needed to assemble it.
The B100 Pro is an ergonomic office chair made by Sihoo. It has responsive lower-back support and a breathable mesh back.
The 4D armrests flip up. The chair reclines to 135°.