5 oz./yd2 / 172 gsm (US), 8.4 oz/Lyd (CA), 100% polyester face plaited to 60/40 polyester/cotton back (total overall garment 61/39 polyester/cotton); Proprietary dual-sided mesh pique knit constructed of fine denier wicking polyester on the outside and soft-as-cotton wicking blend on the inside; Moisture-management performance; Luxury, comfort and performance in one; Active fit; UV 15-39 protection; Hidden button-down collar with integrated collar stays; Dyed-to-match pearlized buttons; Adjustable cuffs with button placket; Double layer back yoke;