This is a great  thin covering for summertime in air conditioning.  The fit was very flattering with a tank top.  I normally wear a 1x top (longer torso & shorter arms)  but ordered the 2x in Simlu.  The shoulder fit was slightly big or wide since I ordered up (the seams were a little bit off the shoulder but wearable, and unfortunately the upper arm area was almost too snug.  Check online for Simlu's size chart.  It's hand wash or dry clean.  The material is thin but drapes nicely.  I'm thinking about ordering this in other colors.  If you have thick upper arms (whether overweight or into fitness for bigger bicep/triceps), don't buy it in your normal size.