The viscous (fluid-like) and elastic (spring-like) properties of the material actively work together -- in the right way and in the right places to provide the support

With clear assembly instructions and all tools and pieces included

Adjustable Height

Synchro-Tilt: Back reclines in a preset ratio to seat

Mesh Task Chair Color:Grey The viscous (fluid-like) and elasticThe SI 100 chair is a perennial favorite, combining value, comfort, adjustability and quality, and featuring a breathable, color coordinated mesh back that matches the comfortably contoured mesh waterfall seat, a carbon fiber finished frame, as well as supreme comfort. Available in Grey or Black mesh seat and frame.