Celebrating the 2016 US Open, these pants are designed exclusively for the official ball boy uniforms and provide lightweight warmth, thanks to a durable double-knit construction. Elastic drawstring waistband Sewn fly Two front angled pockets Right hip zip pocket Back right zip pocket Articulated seams at the knees "Polo Sport" rubber-printed at the left calf Ribbed cuffs Ralph Lauren is proud to be an official sponsor and the official outfitter of the US Open Polyester/cotton Machine washable ImportedRalph Lauren