I'll use this pack for the majority of my rides that are under an hour or so in time to pedal. Anything more than that and I might consider something with more water-carrying capacity. Otherwise, I love this thing. It fits all of the necessities: phone, keys, co2, levers, snack, etc. I also have a really packable wind shell (Arcteryx Squamish) that I can even pack in there for chilly descents. Lastly, I appreciate the small design consideration of placing the strap buckle to the side. You can see it in the stock image above. It doesn't seem like much, but allows it to sit to the side in a more comfortable position.