The other reviewers have essentially said it all and I agree! This is definitively the ultimate in shoulder bag for convenience and security. I used it to replace my old and overused backpack (now gratefully retired) and I was amazed at how many items I was able to store in the bag with room to spare and without annoying bulkiness or a discomforting weighty sensation. Its strap makes for an easy, comfortable tote, even for shoulders of somewhat narrow width. About the only items I was unable to pack for my most recent excursion was a neck pillow (although the inflatable variety might have sufficed). Otherwise, books, money, glasses and a special place for keys (and on and on) all found a place easily. I am planning to use this on my home-work commutes as well from now on. Really love this item!!