6.5 oz 100% open-end cotton(except heather gray 90% cotton/10% poly), preshrunk Seamless collar, taped neck and shoulders, double needle throughout Very unique style: Longer and narrower width Famous for its premium thickness and snug neck Ribbed knit collar and cuff made with lycra to maintain tightness wash after wash S-M-L-XL-XLT-2X-2XLT-3X-3XLT-4XL-4XLT-5XL-5XLT-7XL We have 12 different colors with 14 different sizes. S M L LT XL XLT 2XL 2XLT 3XL 3XLT 4XL 4XLT 5XL 5XLT 7XL LENGTH 28.25" 29.25" 30.25" 32.25" 31.25" 33.5" 33.5" 36.25" 35.5" 38" 37.25" 39.25" 39.25" 42" 40.25" CHEST 18" 20" 22" 22" 24" 24.5" 26.5" 26.5" 28.5" 28.5" 28.75" 28.75" 30.25" 30.5" 33.5" SLEEVE LENGTH 23" 24" 25" 25" 26.5" 26.5" 27.75" 27.75" 28" 28" 28" 28.25" 28.75" 28.75" 30.25" LENGTH(TOP OF BACK COLLAR TO THE BOTTOM END) CHEST(BOTTOM OF ARMPITHOLES ON EACH SIDE) SLEEVE LENGTH(TOP OF ARMPITHOLE TO CUFF END) A difference of size measured shown above can be - 1".