Port Authority® - Pinpoint Knit™ Sport Shirt. Comfy and soft, these sport shirts have a special mesh knit for superior breathability. Easy to care for, these shirts retain their neat, crisp look day after day. 6.3-ounce, 60/40 cotton/poly mesh knit. Flat knit collar Double-needle sleeves and bottom hem. Side vents. Contrast underplacket. Pearl buttons. 3-button placket. Adult sizes: XS-6XL