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The Ninecer is a mesh-back ergonomic office chair built for users roughly 5'2" to 6', with a 330 lb weight capacity. Its main draws are a 3.5-inch high-resilience memory foam seat, 4-way adjustable lumbar support and a 3D headrest, plus 90° flip-up armrests that free up floor space. It also rocks 30° and swivels 360° on casters. Against typical mesh chairs at this level it offers more adjustability than most, though the fixed seat height range and plastic build are the usual compromises. Owners rate it well overall, with comfort and easy assembly standing out and long-term durability drawing some doubts.
In stockSold by NinecerReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
Owners rate the Ninecer 4.3 out of 5 across 235 ratings. Most praise the cushioned seat, the lumbar and headrest adjustment, and quick assembly. Complaints center on build longevity, occasional squeaks and the headrest position for taller sitters.
The Ninecer ergonomic office chair has a breathable mesh back and a 3.5-inch high-resilience memory foam seat cushion. It is designed to support the head, back, hips, and hands, and is made for users 5'2" to 6' tall.
The chair has 4-way adjustable lumbar support and a 3D adjustable headrest. It rocks back up to 30° and sits on a 360° swivel base with smooth casters. The armrests flip up 90°, which saves 35% more floor space.




