The Tenue. Ralph shirt is a modern take on true Ivy style: the button-down shirt. The perfect shirt for both casual and formal occasions. Ralph features a regular fit, a single chest pocket and mother-of-pearl buttons. The Tenue. Ralph Sky is made from a custom heavyweight organic oxford. The light blue/white striped fabric is so solid that you won't have to iron your shirt if you hang it to dry. This Ralph shirt is made in Italy.