This is by far the best piece of luggage I've ever purchased. I'm an avid cyclist and photographer and with this bag I was able to reduce my baggage from 4 to 2 bags for a 2 week cycling vacation. I also brought my bike so I was able to carry this suitcase like a backpack while handling my bike and other traditional suitcase. While on my back, it was very balanced, and easy to put on and take off. When I didn't have my bike with me and needed to move about, the wheels on this Duffel made life very easy (Large and sturdy and roll over minor obstacles easily). The backpack is very sturdy, and it's expandable. This is the best luggage purchase I've ever made. Traveling is great when you have this Duffel with you.