JACQUELINE de YONG's Classic Long Sleeve Button-Up Shirt is a lightweight, versatile piece designed for easy spring–summer wear. Its round neckline and classic collar combine with a button-up front for a clean, timeless look. Key attributes: Blue | Light blue | Cotton, Polyester | Button fastening | Long sleeves | Round neckline | Classic collar | Button-up front | Composition & care: 49% cotton | 51% polyester | Machine wash at 30°.