OUR VINTAGE LIGHTWEIGHT FITTED TEES ARE MADE FROM PREMIUM RINGSPUN COTTON THAT HAVE AN EXTREMELY COMFORTABLE FIT AND FEEL. MOST PEOPLE WEAR THE SAME SIZE IN OUR SHIRTS AS THEY DO IN ALL OF THEIR OTHERS, BUT YOU MIGHT GO ONE SIZE LARGER IF YOU'RE ON THE FENCE. IT IS PRE-SHRUNK, BUT LIKE ANY HIGH-COTTON PRODUCT, WILL STILL SHRINK SLIGHTLY IN THE WASH.