The archive has two separate archives for the 3ds file and OBJ.

All objects have logical names and a group, Turbosmoth - enabled during rendering and assigned to a group. Turbosmoth is set to 1 for perfect smoothing. Thread stitching is separate.

The materials are made so that you can adjust the color of the fabric yourself, for this you need to replace the main texture superimposed on the Diffuse color with the name Color _ ** with CoronaColor and customize it to your taste.