This is a lightweight stretchy fabric they call gabby material. It is - Poly spandex blend that I love. Love it for layering and love how it lays. This lookS so cute alone or layered. I am 5’4” 145 pounds with a 36” bust line wearing the medium. This is tighter in the arms and I am about five pounds heavier right now - I love hormones! If you carry a lot of weight in your arms and back size up. If you want to use it as a layering piece it is fine.
S-3X
S 2/4/6
M 8/10/12
L 12/14/
1X 16/18
2X 18/20
3X 20/22