Shop Unisex's at RalphLauren.com, the Official Site of Ralph Lauren. Classic Tattersall Dress Shirt - Crafted from smooth cotton poplin, this relaxed-fitting dress shirt features a bright tattersall pattern and our signature embroidered pony. Button-down point collar. Applied buttoned placket. Long sleeves with buttoned barrel cuffs. Split back yoke with a box pleat ensures a comfortable fit and a greater range of motion. Our signature embroidered pony accents the left chest. 100% cotton. Machine washable. Imported.