100% preshrunk cotton; Seamless rib at neck; Taped shoulder-to-shoulder; Double-needle stitching throughout; Ash Grey is 99% cotton, 1% polyester; Antique Cherry Red, Antique Irish Green, Antique Jade Dome: 90% cotton, 10% poly; Antique Orange, Antique Sapphire, Sport Grey are 90% cotton, 10% polyester; Lilac, Midnight, Sunset, Russet, Blackberry, Tweed are 50% cotton, 50% polyester; Heather Red, Heather Military Green, Heather Sapphire are 50% cotton, 50% poly;