Have been circling the site for a few months now for L in a number of the shirts but I teetered on the M/L based on their sizing chart. Decided to just take a risk and get the Medium because I have seen no communication about a restock for months and unfortunately it was smaller than the sizing chart indicated for M when received. My own fault, but frustrating they have this great logo and the shirt is really nice but you can tell apparel supply is not a priority of theirs -- I will just stick to the supplements (I love the brand though, wish they restocked more, all of their shirts are sold out on almost all sizes minus XXL here and there)