Boss Black Bono-l Long Sleeved Polo Shirt Medium Grey A classic long sleeved polo shirt by BOSS. In a Medium Grey colourway featuring a tonal BOSS logo embroidered to the left chest it is a simple and stylish design. Finished off with a polo collar trimmed with a signature stripe at the interior. 100% Virgin Merino Wool Regular Fit Polo Collar Ribbed Cuffs Three-Button Fastening Long Sleeved Style - 50476357.