That is so helpful!! I am tall and have ample assets so I generally like a little roominess in my tees, however I tend to SWIM in unisex larges. So Medium for today I say. Plus it's just good to buy one today so I can test drive the sizing before getting my coveted coffee shirt, right? Justification
If it's too snug, I'll just remind myself I have until Tink weekend and half training to make a little more "room"

Which reminds me that blue may match Tink paraphenalia better than red...but Minnie is red...but my eyes are blue...hmmmm
FYI: I like that green color on you, nice shoe matching too!