LAID FLAT, THE T-SHIRT MEASURES 21.25" ACROSS THE CHEST FROM UNDERARM TO UNDERARM AND 24" LONG FROM THE TOP OF THE SHOULDER TO THE BOTTOM HEM. THE SIZE TAG SAYS IT'S A LARGE BUT IT FITS MORE LIKE A MEN'S MEDIUM BY TODAY'S STANDARDS. IT'S BUTTERY SOFT AND PERFECTLY BROKEN IN FROM DECADES OF WEAR.