This is a great vest for all-around trail running use! I can load it up for a full day out, but it also carries smaller loads well for shorter runs. The organizational structure strikes a nice balance between simplicity and flexibility -- enough storage options, but not too many. The material, chest buckles, and side twist dials make for a super comfortable fit. I appreciate the 600ml capacity and the straws on the included soft flasks. The only thing I'd change would be the trekking pole attachment system: I don't like carrying them in front, but the rear attachment option is hard to use without taking off the vest. It'd be nice if there were more convenient rear pole attachment straps.