**TAG SIZE ON THIS SHIRT READS A SIZE L "SLIM FIT". **THIS SHIRT IS A BETTER SIZE M "SLIM FIT" SHIRT MEASURES CHEST 43" (21 1/2" MEASURED ARMPITS ACROSS FRONT CHEST, THEN DOUBLED) LENGTH 28" (MEASURED FROM TOP SHOULDER TO BOTTOM OF SHIRT) SHOULDERS 18" SLEEVES 25 1/2" NECK 16"