I got it in another color that was on sale for 35 euros. At this price, it is a very good purchase if you actually need something like this. I use it for mountain biking, running, and hiking, usually with a 600ml water bottle. Its capacity is larger than it seems; of course, the heavier it gets, the more you feel it during use, so it requires moderation. For example, today I had with me a small pump, a spare tube, a multi-tool and tire levers, a banana, a pack of nuts, and another snack, with the water bottle in one of the side pockets. It was stable and didn't bother me at all while biking. For mountain running, it is not the ideal solution (a vest would probably be preferable), but for short/occasional outings, it is just fine. The straps do not loosen during use; once you find how tight it needs to be and in which position it stays on your body, it remains there and doesn't bother you. The clip for the keys and the divider inside are nice and practical details. The elastic loops hold the mouths of the bottles, making it impossible for them to fall. After washing, it dries very quickly. The fabric is relatively thin; it remains to be seen how durable it is over time. So far, I am very satisfied.