I bought the case to protect the aluminum shell etc. because I in the pants Tasch carrying around my iPhone from scratches predominantly with me. First, has everything worked fine until I made after six months Sheath use vacation at the Dutch sea (no beach holiday). With children, it is unavoidable that Ever sand gets into the pocket ... as I discovered painfully, this sand has then pressed between Case and iPhone and leave unsightly scratches. One or the other will say "own fault", but the replacement shell now in operation in has not this problem, because highly accurate leveling between iPhone and shell is created, where nothing "between squeeze" can. As I have taken other recessions happened something with the shell but not just on vacation at the beach, but also in everyday life.