https://assetstore.unity.com/packages/2d/textures-materials/leather-material-pack-by-gametextures-116187

A pack of 12 stunning Leather Materials built for Unity by the pros at GameTextures. Now updated with our latest version of GT Toolkit for HD and LW Render Pipelines! These beautiful materials are optimized for use within Pro-Builder and inside of any other world building Unity package.