For this reason, I virtually never order anything I haven't tried on first. Unless it's almost exactly the same style as something I already have from the same shop.
However, my daughter is a similar height and size to you (upper body at least) and based on this:
-If you want a women's fit, & have broadish shoulders, get a 10.
-If you want a women's fit, & have small-to-average shoulders, get an 8.
-If you are happy to have a generic T-shirt shaped T-shirt, and you don't mind if it's a little baggy, order a men's Small. Skip the XS as that could be too small across the boobs(c.f. as is the case with my son's old XSs that don't fit my daughter).
-If you want to sleep in it instead of wear it out running, order a men's M or L!
Then, cross your fingers and hope, as no two companies seem to use the same sizing.
no subject
However, my daughter is a similar height and size to you (upper body at least) and based on this:
-If you want a women's fit, & have broadish shoulders, get a 10.
-If you want a women's fit, & have small-to-average shoulders, get an 8.
-If you are happy to have a generic T-shirt shaped T-shirt, and you don't mind if it's a little baggy, order a men's Small. Skip the XS as that could be too small across the boobs(c.f. as is the case with my son's old XSs that don't fit my daughter).
-If you want to sleep in it instead of wear it out running, order a men's M or L!
Then, cross your fingers and hope, as no two companies seem to use the same sizing.