Today I'm going to try and see if all my stuff fits into the 25...if it does, then the 30 goes!!! I really love both and was considering keeping the 30 more but it is a bit big for me. I don't want to look like I'm traveling all the time! If I return the 30, I will get either the keepall 50 or the saleya pm. I don't get why there's only 10 dollar difference for such different sizes!