It was way too tight. I ordered men’s size that fits perfectly. The problem is not with the product but with MY body size.
I run at night and hate reflective vests and other things that shift around while I'm moving, so these shirts are perfect for me. The material doesn't breathe perfectly but it's nearly impossible to find reflective clothing that I feel safe running in on dimly lit streets with no sidewalk so I'm willing to trade that off. Overall I love these, they keep me very visible and, you know, alive, and they fit true to size.