5.1 oz/yd2 / 172 gsm; 100% polyester face plaited to 60% polyester, 40% cotton back (total overall garment 61% polyester, 39% cotton); Moisture-wicking performance; UV protection performance; Proprietary dual-sided mesh pique knit constructed of fine denier wicking polyester on the outside and soft-as-cotton wicking blend on the inside; Matching flat knit collar; Side vents; Luxury, comfort and performance in one; Stylized open placket