From Polo Ralph Lauren, this polo shirt features: “RLX” embroidered at the center back of the neck Rib-knit Johnny collar with contrast tipping Genuine mother-of-pearl button custom-developed with an “RLX Ralph Lauren” logo Short sleeves with rib-knit armbands Left side patch pocket Rib-knit hem Pullover construction COOLMAX® fibers to help keep you cool, dry, and comfortable Cotton/polyester Machine wash/tumble dry Imported.