
Got this to replace my old Sierra back which measures 14 wide x 19 high x 9 deep. It can hold enough clothes and other needs for 4-5 days. My few issues with my old bag were that it wasn't big enough, only had a side water bottle holder, and the zippers kept snagging and occasionally opening under the zipper pull. The new package I received says it measures 15 wide, 20 high and 9.5 deep, but that's actually not true. It actually measures 15 x 20 x 6 and tapers more noticeably towards the top than my old, more squarer one. When I received it in the mail, it seemed small to me. I thought it was just squashed from standing up, but when I unpacked it fully side-by-side, the new package was noticeably smaller. The new pack does have two bottle holders on each side and more padding than my old pack, but it doesn't have a hip belt, no rain cover and is meant to be an "upgrade". The second approach is actually a smaller version of the first model.

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