Shop Men's at RalphLauren.com, the Official Site of Ralph Lauren. Striped Tennis Polo - Crafted from stretch Pima cotton, this sporty polo shirt features moisture-management properties that help keep you cool and comfortable on the courts. Ribbed polo collar. Two-button placket. Short sleeves with ribbed armbands. "RLX" screen-print at the right arm. Even vented hem. Our signature embroidered pony accents the left chest.