One liter of water and 9 days worth of food should weigh in around 20 lbs. alone. @ 2 pounds per day of food; a total of 18 lbs. and then a liter of water weighs in at 2 lbs. That gives you a total of 5 lbs. for all the rest of your gear. Man between your bag, your pack and your tent you must have found a really really light weight tent or something. For some reason all these numbers do not add up for me. Did I miss something. I think that I did. I need to figure out what all light weight stuff you guys have and the reason that I say this is there is no way that I can leave out for nine days and my total pack weight come in at 20 lbs. No way !!!!! I will keep trying though....sabre11004...