This weather-resistant, durable, lightweight, ageless, fashionable, functional bag combines all the elements necessary for a proper backpack with a sleek, trendy, and bold design! Roka’s products are vegan, animal friendly, and produced in socially compliant factories.The outer fabric of each bag is triple coated, weather-resistant, Matte Nylon or Matte Canvas and now Sustainable Canvas or Sustainable Nylon. The base is a weather-resistant, triple-coated canvas.