<human>: Can you give me the gist of the text in a nutshell?

This year, my goal is to run longer and more trail. Until now, my main problem in this regard has been that I dehydrate after 90 minutes or so as I am sweating very easily and heavily. A bottle belt would be one solution, but I'd like to bring along some food and my Primaloft Hoodie for breaks as well. So I made up my mind to shell out for a hydration pack with some storage space. All in all, I think I'll need a pack that

* can hold 2 liters or more of fluid
* is about 10 liters size in all
* has an exchangeable water bladder and a removable drinking system (for cleaning)
* offers the possibility to tighten down the pack to restrict its content's movement 
* does not move much on the back as well

Now there is quite a large range of products to choose from - and I have zero experience with this stuff and most of the vendors. What packs do you use, and what are their advantages and downsides?
<bot>: I am looking for a hydration pack for long trail runs that can also pack a light jacket and some food. Any recommendations?