I bought this bag to add to my arsenal of travel luggage. I am on the road constantly for work, usually 2-3 day trips once a week, and needed something bigger than a backpack to help divvy up my clothes, tools, and 15" laptop. This bag really fits the bill and has been a total joy to use. I love that it expands and can also convert to a backpack so I can easily use it on and off the bike. Just the other day I converted it into a backpack, biked to the Amtrak station, swapped the straps back over to the shoulder carry, and hopped on the train. Like others have mentioned, I really wish this had metal D-rings and metal clips for the shoulder/backpack strap, but the plastic seems of good quality and should last. However, the material is the same heavyweight material you expect from Chrome that can definitely take a beating.