I ordered this one in a Medium for myself along with some other designs/sizes that are for my kids ranging from Youth XS to Adult S. Sizes are consistent and true to standard uni-sex fit for all. Good quality- they are soft with a slight stretch, lightweight but not see-through.
Great customer service, excellent communication from initial order to notification of arrival. Only took a little over a week for it to get to my Overseas AP in Japan!
Definitely buying more American Hart apparel in the future.