Model/archive re-uploaded
Changes:
Revised model, more accurate proportions, added detail to fasteners, reviewed all textures and materials, including stitch material.
Vray version added

COLOR REPLACEMENT on the model:
- 1) Fabric Color through the "Ivin_Velour1_ColorSelector" map (composite), located in the material tree immediately after all fabric color maps "Ivin_Velour1_BaseColor_###", via the "show this layer" button (the icon resembles glasses) (By default, only the first color AutumnGrey is enabled) (all colors have logical labels for Bitmap maps);
- 2) Wood Color through the "Ivin_Wood_ColorSelector" map (composite), located in the material tree immediately after all wood color maps "Ivin_Wood_BaseColor_###", via the "show this layer" button (the icon resembles glasses);
Replacement of Varnish Type (roughness) on wood through the "Map #17192" map (composite), located in the material tree immediately after the roughness maps "Map #17100" and "Map #17153", via the "show this layer" button (the icon resembles glasses);
There is also an image in the archive with a description of how to change the color; (Similar actions for Vray)

- 8 fabric colors
Fabric material: Velour 1 (available as a repeating (tiled) texture at the link https://3dsky.org/3dmodels/show/tkan-veliur-1-barkhat-4k,  and on the chair model changed via SubstancePainter-->Triplanar: tile 1,2)
- 4 wood colors
- 2 types of wood varnish: glossy and semi-matte
Poly Count: 35398 quads/tris
Dimensions y 580 mm x 584.4 mm z 810 mm
Reset Xform
Units: millimeters
Material ID:
1 - fabric (velour)
2 - wood
3 - DivanRu Label
1 iteration of smoothing applied in renders (set only for render) and displacement map on 2 UV channels
UV-1 fabric/wood unwrap
UV-2 stitch unwrap
https://www.divan.ru/product/stul-ajvin-velvet-beige 
The archive also includes a screenshot of the material settings, as well as saved materials Ivn_Velour1_Corona_restore.mat and Ivn_Velour1_VRAY_restore.mat with reset paths.