Product · COLAMY
COLAMY mesh chair: 4D arms, sliding seat, headrest
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COLAMY's high-back mesh chair is for buyers who want the full list of ergonomic adjustments without going to a premium brand. Headrest, 4D armrests, adjustable lumbar, a sliding seat and a four-position tilt lock are all present on one chair, sitting on an aluminium alloy base. It suits home workers and gamers who spend long sessions at a desk and want to tune each contact point.
- Seat depth
- Sliding seat
- Lumbar
- Height adjustable
- Armrests
- 4D
- Tilt
- 4-position tilt lock
- Max load
- 137 kg
In its favour
- It brings together 4D armrests, a sliding seat, adjustable lumbar, headrest and a 4-position tilt lock in one chair.
- The base is aluminium alloy and the class 4 gas cylinder is stated as SGS verified.
- The seat cushion uses high-density moulded foam with a mesh back, a common mix for warm rooms.
Good to know
- The spec table lists only a 1-year warranty, shorter than most chairs in this guide.
- The listing does not state how far the seat slides or how much the lumbar moves.
Our take
Adjustments in practice
4D armrests move up and down, forward and back, inwards and outwards, and pivot. That flexibility helps keep elbows close to the body whether you are typing or using a controller. The sliding seat lets you set how much of your thigh is supported, relieving pressure behind the knees. Lumbar support and headrest both adjust, although the listing does not say how far each moves.
A tilt lock holds the back at one of four angles, so you can sit upright for focused work or set it back for reading.
Materials and comfort
COLAMY says the back mesh is imported from Korea and chosen for flexibility. The seat combines the same fabric with high-density moulded foam, and the cushion is described as thickened and widened. Amazon gives a seat height of 44 cm, a seat depth of 45.5 cm, a 47 cm backrest and an overall height of 132 cm. The chair weighs 22.6 kg.
Build and warranty
The base is aluminium alloy with smooth-rolling castors suited to carpet and hard floors. COLAMY mentions BIFMA certification and a class 4 gas cylinder verified by SGS, with a maximum capacity of 137 kg. Tools and a manual are included for assembly. The one weak point is cover: the specification lists only a 1-year warranty against manufacturer defects, short against several rivals.
COLAMY or a ProtoArc?
The ProtoArc EC200 Pro has an all-mesh seat and 4D arms, which may suit warm rooms better, and ProtoArc typically offers a longer warranty. The ProtoArc EC300 moves the whole back by 6 cm and states a 5 cm seat slide, giving more precise fit information. The COLAMY covers more adjustments than either but publishes fewer measurements.
Verdict
Pick the COLAMY if you want 4D arms, a headrest and a sliding seat in one well-equipped chair and can live with a 1-year warranty. If you value longer cover or a cooler all-mesh seat, the ProtoArc EC200 Pro is worth a look, and tall users may get a better back fit from the ProtoArc EC300.
Compared with alternatives in: Best ergonomic office chairs for a home office, Best office chairs under £300
Amazon listing title: COLAMY Ergonomic Mesh Office Chair, High Back Computer Executive Desk Chair with Adjustable Headrest and 4D Arms, Slide Seat, Tilt Lock, Dark Grey