Bought this to wear during the summer months and wanted something more casual than buttons, polo shirts, straight collars, etc. I bought XL to look bigger and now it looks great! The neckline is neither too deep nor too flat. If you want a lower neckline, just unbutton the buttons and you're done. You may need to iron the collars from time to time. When ironing the collar, be sure to use the lowest temperature setting on your iron or you will get burn marks (shiny spots). If you have burn marks, try spraying some water (spray, not wet) and use iron wool to gently rub the marks. In general I am very happy with the shirt! It doesn't wrinkle and looks very clean when ironed properly!