Even being careful, after a few months the plastic part deforms every time you pull the pocket and breaks from earphones and at the USB port. At these locations, the plastic is too late for this to be sustainable. In addition, the manufacturer does not provide this piece separately and does not support under the warranty, this being a "normal wear".
Moreover, as has been said, the diameter of headphones hole is too small and the original headphones are almost unusable with.
Too bad the part surrounding the hull is so unsustainable because the protection provided is excellent.