If you go out for leisure, lv neverfull is a good choice, with large capacity, strong endurance and convenient management. I suggest choosing a chessboard, because presbyopia is a bit old. Although I go out to play, I actually recommend longchamp canvas jiaozi bag, because it is cheap, large in capacity, light and has a zipper. Go to places where there are many people and pickpockets, such as Paris (I personally think that mobile phones will be stolen if they are put in zippered coat pockets, and bags without zippers can be imagined), and you will know how important it is to bring a zippered bag, otherwise there will be no underwear left that will be stolen in minutes.