F4 provides a unique torsion-spring mechanism that is totally concealed within its frame. The geometry of the chair, in combination with the springs, provides comfortable support for a broad range of users without adjustment.
Design and options
Backs may be mesh or upholstered in one of three different styles. Knit seats are an option to match the full range of mesh colors. Frames are available in either polished aluminum or one of 20 powder coat finishes.
Sustainable design features
Greenguard IAQ Certified
Recycled content aluminum base, frame, and arms
VOC-free powder coat finish