Port Authority Dry Zone Colorblock Ottoman Polo. K524We took the Dry Zone moisture-wicking performance from our solid ottoman polos and added colorblocking on the collar, sides and sleeves. Colorfast and snag-resistant, this hardworking shirt is ready to do business., 5.3-ounce, 100% polyester, Flat knit collar, 3-button placket, Dyed-to-match buttons, Open hem sleeves with contrasting rib knit inset,