Barbour Tartan Cotton Pique Polo Shirt Dark in Olive / Classic. A true wardrobe essential, the Barbour Tartan Pique polo shirt is the perfect addition to any off-duty outfit. Crafted from a premium cotton pique fabric in a rainbow of colours to suit anyone's tastes, the polo boasts classic styling with a two button placket, lay flat collar and ribbed cuffs. They're detailed with our signature tartan to the inner neckline and placket, and a Barbour crest logo is embroidered to the chest for the perfect finish.