This review is for the fit.  The person I purchased this for is a true medium and this medium fit him well, 40R for reference.  It wasn't too big or small.  However, the item was sent without tags and the sweater was already starting to pill.  Brand new items should not pill. Also, as it was from Patagonia, pilling is when you have worn the item and washed it over time.  So i was disappointed I received an used item instead of new.  The 3 star was because I don't know if this sweater is a true Patagonia.  If it is, it is disappointing because... pilling already?