Article pretty decent although the front protection is already somewhat opaque. But most important to emphasize is that this is absolutely not for trekking with tracing via GPS with regular consultation. When the cuff is placed at the biceps, it is impossible to read the GPS map type information. He must undo the arm to play it. Note that it is also a problem for the passage of the straps of the backpack. By cons, if you know the path and the goal is to have the smartphone handy when called, or with wired or finally to a performance monitoring headphones when you know the route (with Runtastic a type of follow-up), then yes, it is an article that seems quality. The proof? I keep still despite my disappointment