Shop Men's at RalphLauren.com, the Official Site of Ralph Lauren. Custom-Fit Striped Polo Shirt - Crafted from washed cotton mesh, this trim-fitting polo shirt features stripes at the chest and our signature embroidered pony. Ribbed polo collar. Two-button placket. Short sleeves with ribbed armbands. Stripes at the center front and back. Uneven vented hem. Our signature embroidered pony accents the left chest.