I’ve have several Louis Vuitton bags but the black Epi Keepall 50 is my favorite. The leather is water resistant so I don’t have to worry about the leather getting ruined in an unexpected rainstorm like my other LV bags with vachetta leather. The Keepall 50 is the perfect size in my opinion, a bit smaller than the 55 which is the largest you can take in economy, but the 50is just easier to deal with when running around airports. I even usually get away with it as my “personal item” that can fit under the seat as long as its not stuffed all the way full.