6.0 oz. 100 % ring spun cotton, preshrunk Seamless collar, taped neck & shoulders, double needle throughout. Original v-neck cut to fit at the standard v-neck position APPROX MEASURE S M L XL XLT 2XL 2XLT 3XL 3XLT 4XL 5XL LENGTH 28" 29.5" 30.5" 31" 33" 33.5" 35" 35.5" 36.25" 36.25" 37.5" CHEST 18" 20.25" 22" 23.5" 23.5" 25.75" 25.75" 28.5" 28.5" 30" 31" Length (Top of back collar to the bottom end) Chest (The bottom of armpit holes on each side) A difference of size measured shown above can be - 1".