Shop Men's at RalphLauren.com, the Official Site of Ralph Lauren. Custom-Fit Flag Mesh Polo - This trim-fitting polo shirt is crafted from heavily washed cotton mesh and features a flag applique at the back. Ribbed polo collar. Two-button placket. One genuine horn button and one metal concho button. Short sleeves with ribbed cuffs. Embroidered flag and "US-RL 5th Inf. Reg." text at the left chest. Flag applique at the center back. Allover rips and repairs. Uneven vented hem. 100% cotton. Machine washable. Imported.