the bad chemicals polyester/nylon
When fabrics are made from nylon and polyester, the natural feel is more in the nylon dress. But polyester fabrics have some advantages like the durability and wrinkle resistance capability over nylon. Compared to polyester, nylon has very good resistance to abrasion, fungi, insects, chemicals, and even mildew. If polyester shrinks on heating, nylon just melts and it catches fire sooner than polyesters.