Bought this for a couple of ultramarathons I had and was great. Very comfortable, practical and robust. Sucks onto your back during all activities, used it for a whole ski season and still going strong. Only down points is when using for commuting/day to day too many straps etc and gets annoying and a lot of money for such a small bag. Hydration unit good as well, as it has the integrated spine makes it easier to stuff into over filled bag. Would recommend to a friend whose keen on outdoors. Had it over a year, not looked after it but still works/looks like new.