I got this for mountain biking. I was getting frustrated finding a hydration pack that holders all of the essentials plus elbow and knee pads. This fits everything without seeming over bulky. I am 5''3 and had to adjust the straps all the way to the the pack straps but it fits well after the adjustments. Very versital for all sizes.
This is a beautiful bag. The design is great and very comfortable. Unfortunately there isn't a whole lot of room in this pack (this is without the bladder being full). I usually carry elbow and knee pads in the my pack and there wasn't enough room for these. Great bag if you don't need to bring much with you.