100% preshrunk cotton; double-needle stitching throughout; rib knit neck; shoulder-to-shoulder tape; heather grey is 90% cotton, 10% polyester; ash is 99% cotton, 1% polyester; rib knit neck and cuffs. Printed on Front of Shirt. Very vibrant print. Won't peel or crack in washer/dryer. Sizes are as follows, W=Shirt Width, L=Shirt Length. All Measurements are in inches: ADULT - (SMALL 18W 27L), (MEDIUM 20W 28L), (LARGE 22W 30L), (XLARGE 24W 31L), (2XL 26W 32L), (3XL 28W 33L). YOUTH - (Sm 17W 22L), (Md 18W 23.5L), (Lg 19W 25L), (XL 20W 26.5L).