The fur is made using Hair and Fur
Screenshot with the settings modifier is also present in the archive
Rendering> Effects> Hair and Fur> Hair> mr prim

https://www.flexform.it/en/products/sofas-sectional-sofas/gregory 

Name: flexform GREGORY sofa - 02
Version: 2016
Preview: Yes
UV Mapped: Yes
Material: 4096 * 4096
Units: Centimeter
Dimension: 306 x 80 x 100 cm (LxDxH)
Polys: 258,459
Verts: 261,369
XForm: Yes
Render: Corona, Vray
Formats: 3Ds Max 2016, OBJ