The mesh back on the relay airmesh office chair keeps cool you while the padded fabric seat provides maximum comfortthe great modern design of this chair is offered with black or silver back colour and various modes of adjustable arms seat height and tilt controlblack or silverfull mesh backfabric seatsynchro mechanismfolding armsgas lift tested up to 150kgmeasurementswidth ndash 635mmdepth ndash 605mmback height ndash 530mm back width ndash 480mm seat height ndash 440mm dash 540