I'm female, about 5'7" and bought a size small. This men's version is better for me than the women's, primarily because it's longer and doesn't lift above my waistband every time I bend.

Fabric is soft, thick, flexible without binding or being too loose.  I simply use it as a shirt and layer it under sweaters/vests as needed. My daughter, who wears these types under a uniform, prefers the tighter and shorter women's sizes.