Barbour Castlebay Shirt in Olive. This regular fitting shirt offers an all over bright check design using an Autumnal colour palette of greens and reds. It features a full button closure, along with a button down collar and open chest pocket for a formal look. This is the perfect shirt for brightening up a dull day, and is suitable for both smart or casual occasions. Layer underneath a thick jumper and jeans with brogues for an on trend look.