I bought this tape because my button-up shirts always gap in the chest area.  (Most button-up shirts were not made for women with large chests).  So this is a need for me with my professional attire.  It works well as long as you really smooth it on one side before removing the other side of the backing.  Plus, these are big strips so I can cut them in half and use one strip in two areas.  It's just a great thing!