PORTUGUESE FLANNEL Atlantico Shirt White. A regular-fit shirt in 100% cotton seersucker, light and subtly textured. A button-down collar and mother-of-pearl buttons add an elegant, timeless touch. • Regular fit, comfortable and easy to wear. • 100% cotton seersucker, light and breathable. • Button-down collar and chest pocket. • Mother-of-pearl buttons for a refined finish. • Buttoned cuffs and curved hem. A perfect staple for a smart yet relaxed look.