Though this bag is smaller than the standard carry on size, it is big enough to fit about 5 days of summer clothes (packed in eagle creek half cubes) and shoes, if you pack on the lighter side (maybe not as much if you are male=bigger clothes and bigger shoes).  I got 5 days of clothes, 2 pairs of shoes, toiletries and jewelry in there for a 5 day trip to Las Vegas and it was fairly full. This bag has LOTS of pockets.  I used maybe half of them. Love the tote bag handles at the top too because it was easy to carry it down the narrow aisle on the plane.