6.8 oz./yd² (US), 11.4 oz/Lyd (CA), 100% Peruvian Pima cotton; Grey Heather is 90/10 cotton/polyester; Comfort of luxurious Pima cotton; Softly shaped for a flattering fit; Three Dura-Pearl™ button placket; Shape-keeping DuPont™ Lycra® ribbed cuffs; Additional yarn in collar & cuffs for a neater appearance and greater durability; Hemmed sleeves; Durable double-needle stitching on hem with clean-finish side vents;