With automatic weight adjustment, RIYA offers comfort for changing use. RIYA with classic synchronous mechanism including seat tilt adjustment allows individual adjustment for longer sitting. The height-adjustable lumbar support provides additional support for the back. The seat depth can be extended by up to 50mm. The swivel chair is available with a medium-high or high back (optionally with headrest), with castors for hard or soft floors as well as glides, with 2D, 3D or without armrests. The seat is upholstered, the back is designed with mesh or with upholstered padding.