To display hair and clothes, a double shader is used, as well as a two-sided display of polygons. Also, when creating hair in the engine, standard material settings were used.
Also note that the models have PBR textures and contain a number of simple and not very animations.
Attention!
Carefully read the description of each product on a separate page, this is very important
Read carefully!
And don't be afraid to ask questions by email.
Below are links to the product pages from the package