There are backpacks for a variety of use, but here I address the question from the title with the focus on packs for outdoor use, and this means hiking, mountaineering, and backpacking.
Regarding the torso size, the best hiking backpacks 65 liters plus for an X-small woman will have 13 inches (33 cm) torso length, there is nothing smaller on the market.
There are many reasons why you would want to have a framed backpack, and they are easily understandable. But there are also a few reasons why some people rather choose frameless packs.
I have seen the question from the title asked by some people, and have noticed a variety of very different answers that address completely different aspects of a pack. So the question may be ambiguous, and it is properly answered here.
When this is about hiking and backpacking backpacks, nowadays canvas backpacks are hard to find and they are not very popular. There are reasons for this.
The answer to the question in the title can contain various aspects, so instead of suggesting one specific pack, here I give some suggestions that are important to consider.
Sleeping bags are usually not carried attached to a backpack, no matter if this is a large pack or a small day pack. But if you are in such a situation, no worry, there are various ways to do this.
When you have a piece of outdoor clothing that is supposed to be waterproof, you can easily know if it is reliable, just go and walk in the rain. With personal water filtration systems it is far different. There is no way to know.
Kelty is one of the top backpack building brands, it is globally known, and with the price/quality combination that is hard to match.
The question in the title and similar questions are frequently asked on social media and forum sites. Several of them are answered here in the text. So keep reading.