For my old iPhone I had the same bag in size M. Unfortunately not fit the iPhone 4 with Bumper pure. So the L ordered. There, you can telephone marvelously perfectly safe. However, you have to live with the fact that the iPhone up a piece (1-2 cm) looks out. I myself do not find that so bad, but the case use only if I have the Bumper drum, which is rarely the case. Otherwise, the bag is well made and has a still just acceptable price.