I unknowingly purchased a United airlines basic economic ticket for work. Once I noticed, I came upon this bag. I measured it at the airport and it fits exactly into the personal bag measuring box. My work laptop with the sleeve fits inside. If you lay your clothes flat, you can fit more. I also can fit a small Kate Spade crossbody w/duster inside. I was able to fit a pair of leggings, a button down plaid top, a pair of work slacks, a blouse, 3 pairs of underwear sets, and make up bag. The additSee full review