When I first saw the Eagle Creek Traverse Pro Daypack luggage, I knew it met the requirements I had been looking for my international travels. My wife and I are retired and travel 5~7 weeks at least twice a year. We need lightweight luggage that can be put on planes, trains, buses and moved on busy, cobbled streets. I am a professional photographer and my wife uses a computer and research books in our travels. What is so nice about this luggage is that it is about 6 lbs and the front zips off as a back pack so I can put the back portion in the upper bin of a plane and put things I will use during the flight in the small packpack and put it under my seat. As I always carry my cameras, laptop, MP3 player and other necessary electronics onboard with me, it is important my luggage can accomodate these items and that they are readily accessible. The benefit of the Eagle Creek Traverse is its superb design and quality construction. I have traveled for over 50 years throughout the U.S. and worldwide for business and travel. This is the best luggage I have found at any price.