Shop Men's at RalphLauren.com, the Official Site of Ralph Lauren. Performance Half-Zip Jacket - This sporty half-zip jacket is crafted from ultra-soft fleece and features our signature embroidered pony. Mockneck. Contrasting half-zip placket. Long sleeves with even-sewn cuffs. Even-sewn hem. Our signature embroidered pony accents the left chest. 100% polyester. Machine washable. Imported.