Austrian Lenzing™ Tencel fabric, derived from natural plant fibers.Soft and comfortable, with a natural soft luster on the surface (each piece comes with a certification tag). It features a two-piece design, with the outer layer opening and closing with a nylon zipper and the inner layer opening and closing with a YKK zipper.The inner lapel design and the outer stand-up collar design, combined with the zipper opening and closing, create a sense of layering in the outfit