100% heavyweight cotton t-shirt (6.1 oz. 100% preshrunk cotton. Double-needle collar, sleeves and waist. Seamless collar with taped neck and shoulders. Quarter-turned. ) MEASUREMENTS ARE PIT TO PIT ACROSS FRONT OF CHEST AND FROM TOP OF COLLAR TO BOTTOM OF T. Small (17" chest x 28" length), Medium (19" chest x 29" length), Large (22" chest x 30" length), X-Large (24" chest x 31" length), 2XL (26" chest x 32" length), 3XL (28" x 33")