The Vernal Arc is a mesh-back ergonomic office chair with unusually deep adjustability for its class: 4D armrests, adjustable seat depth, and a lumbar support that moves up and down, forward and back, and side to side. The backrest is breathable 3D knit mesh and the recline runs 90° to 110° with four locking positions and four levels of tension. Buyers call it comfortable and easy to assemble and say it suits the employees it was bought for. The weak point is the armrests: owners report the 4D sliders drift under light weight and that the locking method is unclear.
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Owners find the Vernal Arc comfortable and simple to put together, and many bought it for employees who like it. The recurring complaint is the 4D armrests, which slide out of place under light pressure and are hard to lock.
| Measurement | Value |
|---|---|
| Overall Depth | 22.8–24.4'' |
| Overall Width with Armre | 26.6–27.8'' |
| Overall Height | 39.8–43.1'' |
| Seat Height | 17.3'' |
| Width Between Armrests | 18.3–19.5'' |
| Seat Width | 20.3'' |
| Seat Depth | 16.7–18.3'' |
| Armrest Height Above Sea | 6.7–9.8'' |
| Minimum Armrest Height f | 24'' |
| Backrest Width | 19.1'' |
| Gas Lift Height | 1.2'' |
The Vernal Arc is an ergonomic office chair with a breathable 3D knit mesh backrest. The seat is molded foam with fabric upholstery. The armrests have a nylon frame with PU pads.
The seat depth is adjustable. The 4D armrests adjust in height, depth, width and pivot. The lumbar support adjusts up and down, forward and backward, and side to side.
The backrest reclines from 90° to 110° and locks in 4 positions. Recline tension has 4 quick-adjust levels.


