Vintage Generra Hawaiian Button Up Shortsleeve Shirt Men's Size on tag states it’s a “S-14-14 1/2” but it fits like small-ish large. It’s short on length (I’m 5’11 and it’s just a touch short for me) but the sleeves are a little long. Could probably use a shortening unless you have bulky shoulders. Measurements are as follows: CHEST: 23” LENGTH: 28” SLEEVE: 22.5”