model smoothing the Turbosmooth modifier to make the mesh less dense uncheck
Chair width 690 mm
Chair depth 860 mm
Chair height 960 mm

The position of the backrest can be changed in the model the backrest and seat are saved as separate objects.

Armchair Onega with fabric upholstery.
If there is a perfect lounge chair in the world then definitely Onega. Armchair Onega was created in order to never get tired of it. This is facilitated by the tilt position mechanism which provides as many as 3 positions. In other words the design of this chair allows you to move from a sitting position to a lying position without applying any effort. Combine this with amazing ergonomics comfort and a springy base and you have a chair that is impossible to come off of.