Good if you don't weigh it down
This is a great bag that I frequently used for commuting to work. My only complaints were that it did not function well as a laptop bag and was uncomfortable if you had odd shaped items inside such as boxes or anything with hard corners. The buckle is awesome for taking it off and putting it back on. I stopped using this bag however after I got a herniated disc in my lower back last spring and now I soley use a back pack instead of any type of shoulder bag.