Leather Folders in Nairobi. Promotional conference leather folders are a great way to get your brand out to a wide audience. Your customers will be promoting your business every time they head to work on the train, arrive for a business meeting or attend a seminar because they are just so useful to office workers professionals and students alike. Printed or embossed with your logo, a branded leather folder will keep papers safe, provide a place to store business cards and keep paper and pens readily to hand for note-taking. Leather material being durable makes them durable and reusable meaning they can last for years, extending your advertising potential far and beyond.