DetailsShell: 92% polyester, 8% elastane. Panels: 100% polyester.Machine washable.Signature Big Pony rubber-printed at the left chest and the center back.Ribbed polo collar with contrast tipping. Two-snap placket.Striped short sleeves. "Polo Sport" rubber-printed at the back of the left sleeve.Contrasting panels at the underarms and the sides. Official US Open 2016 logo rubber-printed at the right chest.Reflective "ThermoVent" graphic at the back right hem. Even vented hem.Imported.Ralph Lauren is proud to be an official sponsor and the official outfitter of the US Open.