Billionaire's Popeline Shirt Regular Fit is a refined poplin button-down designed for formal and smart-casual wear. It highlights subtle detailing—mother-of-pearl buttons and a studded chest patch—for a modern, polished look. Key attributes: Blue | Light blue | Cotton poplin | Mother-of-pearl buttons | Buttondown collar | Studded hang loop at yoke | Studded patch sewn at left chest | Two darts on the back | Curved hem | Dimensions & fit: Regular fit | Composition & care: Cotton poplin