Here’s a free 3d model from Italian manufacturer i4Mariani: Oyster Light Armchair, designed by Mauro Lipparini. Made from two sheets of continuous saddle leather, ribbed and pressed, take the concave and convex shapes, and together jointed like a shell making from Oyster Light a solid seat form. The dimensions are: Length 90 cm x Width 74 cm x Height 87 cm (35.4” x 29” x 34.2”). The vray file has the texture for leather, so you can bring it for other 3d formats or drag & drop the vray file into your scene. Enjoy it!