Bella Dahl Shirt Tail Button Down The Shirt Tail Button Down is designed with an easy, slightly oversized fit for effortless everyday wear. Relaxed silhouette – softly structured with an intentionally oversized feel. Classic button-down front – clean and timeless for versatile styling. Chest pocket – a functional detail that adds a casual touch. Shirttail hem with longer back length – creates movement and an easy, flattering drape.