I recently started hiking and have been trying to get down to the basics. I always pack too much water for my hikes. I don't have enough room in my bag for anything else. Plus the bottled water really weighs on my bag. I ordered this bag and it works really well. It is easy to use and drink. You don't have to stop mid-hike to get water from your pack. You can drink and walk. This is the perfect solution for many activities, not just hiking. This bag is easy to clean and lightweight. I would recommend this bag to anyone looking for an alternative to carrying bottled water on long walks, runs or hikes.
I am 5 ft tall and quite slender. This pack fits me quite well as you are able to make adjustments. The hydration function is great as it is easy to use. I still need to purchase the extras to clean and dry the hydration equipment ( I used paper towels wadded up to dry it out). I took away one star as I am still getting used to the pack and it is not totally comfortable yet. I will edit this review as I use the pack more- especially with different types of clothing (I used it with a sun shirt but have not used it with a jacket or winter coat). At this point I would purchase this pack again.