100% preshrunk cotton; Dark Heather, Heather Navy, Heather Orange, Heather Purple, Heather Royal are 65% polyester 35% cotton; que Cherry Red, que Heliconia, que Sapphire and RS Sport Grey are 90% cotton 10% polyester; double-needle stitched sleeves and bottom hem; taped neck and shoulders; ½" rib knit collar; sideseamed