Shop Boys's at RalphLauren.com, the Official Site of Ralph Lauren. Custom-Fit Big Pony Shirt - This slim-fitting button-down shirt is crafted from soft cotton and features our signature Big Pony embroidery. Button-down point collar. Applied buttoned placket. Long sleeves with barrel cuffs. Box-pleated back yoke. Our signature embroidered Big Pony accents the left chest. 100% cotton. Machine washable. Imported.