Nike Men's Dri-FIT Fit Players Flat Knit Collar Polo Engineered for the course and beyond, this performance style has a flat knit collar for a classic look. Unparalleled Dri-FIT moisture management technology delivers optimal breathability. Design features include a three-button placket and open hem sleeves. A contrast heat transfer Swoosh design trademark is on the left sleeve. Made of 6-ounce, 100% polyester Dri-FIT fabric. Classic fit is fuller through the chest, arms and waist.