Got this pack in feb for trail running. The first one I got broke on the first run. The waistbelt buckle snapped. Returned it without problems & got the new one in about 4 days. No problems with the second one so far. The pack fits really well & doesn't bounce, even when loaded with a bottle & gels. Cinch straps work well, as does the bungee which I use to hold a wind shell when I'm not wearing it. Other than the initial buckle problem, the pack is worth every penny & I would recommend it for runners needing a little more cargo space than a standard bottle pack.