Guinness Rugby shirt. The color combination of green body, white panels and gray sleeves combine to may a stylish and modern Guinness rugby shirt. It is also embroidered on the back with a large number 17 and a small insert with the number 59 representing 1759, the year the Guinness brewery was opened in Dublin, Ireland. The little pint of Guinness embroidered between the shoulders is a cute Irish touch. Official Guinness rugby merchandise.