Our Cork fabric is a natural material. It's made from real bark from cork trees that grow on the Iberian Peninsula and it has a life and an aging process of its own, not unlike leather. Over the years, the color of cork fabric will deepen in some areas and lighten in others; natural creases will appear, especially if the bag is folded; and an uneven texture, similar to the surface of tree bark, may develop. Even some minor flaking of bark can be expected.
Below are photos of a Little Swift in Cork that's been in regular use for the past 3+ years.
Notice the natural creasing and wrinkling apparent in these photos, the well-earned marks of character.