Luster (textiles)

Okay kiddo, luster in textiles is like how shiny or dull the fabric looks. Some fabrics are super shiny, like satin or silk, while others are not as shiny or even matte, like cotton or denim. It's kind of like how some toys or objects are really shiny and some are not. Luster can make clothes look fancier or more casual depending on how shiny the fabric is. Does that make sense, champ?