Inspired by the bridge pose of yoga, the Shelby Mesh Back Ergonomic Operator Chair ingeniously embraces a 3D dynamic dual-back to relieve the pressure felt by your lumbar region, and helps you maintain the right sitting posture for long hours, preventing back-related issues. The Shelby benefits from a gas lift adjustment, with a seat height variance of 46 to 55 cm. The chair also has a 4-gear tilt adjustment mechanism which means the seat and back of the chair move backwards in tandem, providing maximum support. It also allows you to personalise the chair to your posture. The backrest features polymer mesh fabric which comfortably accommodates people of different body shapes.