What a great option to the suit jacket in this soft, pliable fabric. Jess and Jane is using a very travel friendly fabric that is 95% polyester and 5% spandex called ITY or Interlock Twist Yarn. ITY is a cool and fluid knit fabric with incredible drape. A single button closure really dresses up the jacket that features a mesh hemline so the bottom is somewhat see through. Wrinkle free silky fabric.