I have now changed my review. This bag is not wearing as well as the first bag I have of the same type. The first bag is still good, however this bag is falling apart . . . the handles are coming apart from the seams and the zippers are very fragile. The wheels are wobbily. The pull handle is has too much wiggle. [Old review: This is the second bag I have purchased . . . I LOVE IT that much.] I have another one in red. Packs a lot, rolls easily, surprises everyone with the ease at which I travel . . .very light. The extra bag has a back strap that holds it securely to the rolling bag . . . no flipping as you are wheeling. To enhance the volume to be packed, I also use space bags (not the vaccuum kind) to really pack a week's worth of clothes for a cruise. Gowns pack easily in the back up bag. This bag is a charm!