<size chart> Lightweight all-cotton shirting is especially ideal on a hot summer night. Nothing can compete with a broadcloth fabric of 98 gsm (grams/sq mtr) vs a knit t-shirt of 220 gsm. And the classic smaller scale windowpane check and small scale plaids are some of the easiest reaches we can make, suitable for nearly any occasion, or any season. fit: classic; tapered waist content: 100% cotton broadcloth, smooth "silky" finish, 98 gsm/2.9 oz patterns and fabrication developed exclusively for Relwen 2 5/8" classic buttondown collar w/ added reinforcement behind smaller 14L buttons natural mother-of-pearl shell buttons, single open patch chest pocket single needle clean finish construction throughout care: machine wash cold, no bleach, air dry only imported