Are you concerned the size small might be too big for your male student?  I'll let you in on a secret...the only difference between the COTTON men's and the women's shirts is the direction of the button placket.  MANY men order the women's cotton shirts because they JUST FIT BETTER and no one can tell the difference.  If your son is between a youth XL and a men's S, order the women's cotton medium for a better fit. **the tag does say ladies, most moms cut the tag after they are sure the shirts fit as the shirts can't be exchanged after the tag has been cut.**

This tip does NOT apply to the Performance (dry fit) polos as the women's is cut much different than the men's.