Port Authority Silk Touch Performance Long Sleeve Polo. K540LSWe took our legendary Silk Touch Polo and made it work even harder. The durable Silk Touch Performance Long Sleeve Polo wicks moisture, resists snags and thanks to PosiCharge technology, holds onto its color for a professional look that lasts. There's just no higher performing polo at this price., 4-ounce, 100% polyester double knit with PosiCharge technology; White is 4.3-ounce for increased coverage, Self-fabric collar, Tag-free label, 3-button placket with dyed-to-match buttons, Open hem sleeves