A navy double-breasted design offset by gleaming brass buttons, this wool blazer oozes a distinctly nautical vibe. The precise, smart silhouette of this military mascot will instantly upgrade any shirt and trousers teaming to the highest level of formality. Work with this by opting for a classic polka dot tie in an equally dark tone and a tried-and-tested white shirt. For embellishment all you need is a pocket square; go a little off-beat here with a wildly paisley piece in more shocking shades of cyan and scarlet.