I don't own a regular lily but then again, the medium one is a ***** of a stretch for me (I like to carry all my things with me at all times.) That said, I don't find the bag to be exceptionally heavy, even when loaded up and mine is always loaded up. My Bal bags are lighter but the medium lily is big enough to take on trips (holds my iPad mini, wallet, pouch of stuffs, tissues and my smallest sunglasses case) and still small and dressy enough to take out at night. I think a long weekend trip to Toronto a few months back is the first time in my life that I've traveled with just one purse and managed to go shopping, out to nice dinners, and on the plane without wishing I had something else.