When it comes to your summer style, sunglasses are a practical necessity. Ranging from classic Wayfarers to visors, Topman has the most wanted styles of the moment. In a nod to the current 90s revival, round frames and retro styles are still this season's must-have style; look for simple frames and coloured lenses for a modern update. Or try acetate frames in crazy colours for a current day classic that won't get old. For guaranteed style, play it safe with the classics, with a pair of Wayfarers or Aviators. Choose simple frames and a designer brand for an investment buy.