Shop Unisex's at RalphLauren.com, the Official Site of Ralph Lauren. Embroidered Serena Sneaker - This comfortable slip-on sneaker features preppy "RL" and skull embroidery. Rounded-toe silhouette. Slip-on styling. Elasticized side gores ensure easy on and off. "RL" and a skull design are embroidered at the toe. Leather "Polo" tag at the heel. Padded insole. Soft leather outsole. Leather. Imported.