. . 5.11 Professional Polo long sleeve shirts are a consistent favorite among law enforcement and military professionals worldwide. Built from strong, durable, and surprisingly comfortable 6.8 oz. pique knit cotton, our 5.11 Professional Polo long sleeve shirt offers all the features you expect from top grade men’s wear. A no roll-collar and flexible collar stays ensure a clean, professional appearance in any situation, tough melamine buttons won’t burn, crack or melt, the three-button placket adds a traditional style, and a drop tail hem with side splits keeps your polo securely in place all day long.. . Traditional three button placket. . No Roll Collar with flexible collar stays. . Drop tail hem with side splits. . Accepts embroidery and silk screening well. . 6.8 oz. 100% Cotton pique knit fabric. . Melamine buttons won’t burn, crack, or melt. . Strengthened seams. .