I ordered this bag because as a new parent I needed a bag that could hold both my things AND my son's things without weighing over 50 lbs! So my criteria was big and light, and this bag fits the bill. It is extremely light for its size and I expect that it will be perfect for trips with my son. I took it on a business trip to Europe and I was worried that the large size would be a problem, as I was traveling by train. Yes, it was a bit large, but it worked perfectly because it is very easy to maneuver and light (and the size meant there was lots of extra room for gifts). My only negative comment is that the material seems a bit thinner than other (more expensive) bags I have owned and I expect that it will incur some damage from airline handling over the years.