For that cute boyfriend fit it works best for a size XS Ralph Lauren Yarmouth button-down shirt boyfriend features a classic vertical stripe pattern in yellow, blue, and white. Crafted from 100% cotton, this long-sleeve piece includes a button-down collar and the signature embroidered pony logo on the chest. The timeless design makes it a versatile staple for professional or casual wear, offering a crisp look with a comfortable, breathable feel.