NEW Port Authority® - Bamboo Pique Sport Shirt. K497 Nature meets science in our new Bamboo Pique Sport Shirt. Made from fabric knit with bamboo charcoal technology, this shirt is exceptionally breathable and comfortable. With an earth-conscious bamboo blend, this sport shirt is also antimicrobial, UV-resistant and odor inhibiting. Beyond that, it also helps regulate body temperature and wick moisture so you stay dry and confident all day long. Adult sizes: XS-4XL