The size of this bag is perfect to replace my rolling carry on bag which is heavier and more cumbersome.  The padded shoulder strap is long enough for me to use as a crossbody bag if it's heavy since I'm very short 5'2".  The luggage strap at the back of the bag will make it easy to attach to my suitcase. I can also use this as a weekender bag. All in all this is a very good purchase.