So I've had this pack for almost a year now and have used it on many multi day backpacking trips. At 50 liters it a great size to take with you out in the woods for 3 or 4 days no problem and could easily do longer in the warmer months when you aren't bring as much stuff with you. At first I wasn't sure if I liked the hip belt but I have to say I am impressed with the amount of weight you can comfortably carry in this pack. I wouldn't hesitate buying this pack. Arcteryx makes some pretty amazing products and this is one of them!