In VRoid Studio, import in Outfit > Socks. Click on the icon that newly appears, and it will apply to your model. PNG - Edit Sock texture. Import PNG. Save. Enjoy. Not to be reproduced/altered in any way, or sold on any market as your own product. Do not claim as your own creation. You are not allowed to redistribute in any way, shape, or form. Cannot be re-sold, or used alone or in combination with other items commercially.