I really like this. It fits in my pocket as a replacement for the dirty bladder that has become mine. A big plus for me is that there is a cap for the mouthpiece. I really like the cleaning kit in it. I feel like it's a more thorough cleaning so I'm not worried about bacterial growth and such. Especially one that can clean the entire pipe! I haven't had any spill/leak issues and after a few washes before first use I didn't feel a thing. I'm also very picky. I think the only downside I have is that the mouthpiece cap doesn't come off as easily regardless of the mouthpiece opening. So when you take them off, the mouthpiece valve usually opens with it. It's not really a problem since I plan on drinking anyway, but it might bother some people.
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