Each Oceanic chair is manufactured using 1.45 lbs of recycled ocean bound plastic. Ergonomic features include a suspension seat, which contains elastic mesh bands embedded in high-density, highly resilient molded foam, for added comfort and support. Synchro-tilt functionality with tilt lock allows the seat and back to tilt at different degrees for optimal ergonomic posture. One-touch pneumatic seat-height adjustment helps you instantly select your preferred position depending on your task. 4D arms adjust up and down as well as forward and back, and the arm pads pivot to the left or right, providing superior ergonomics.