When I travel, I don't want to take my wallet, I have no need for all those dumb store cards and everything else that hogs up my wallet on a daily basis. The passport cover is THE perfect solution. I recently got my mon mono one, but before that I used another designers passport cover. And YES I do remove my passport because I don't want the people at the airport and at customs with their grimy hands on my passport cover. Im kind of a germaphobe... and lets not even jest when they get stamp happy and they have ink everywhere. The passport cover has slots and pockets for extra things. Like your custom forms, And your room key, or if your staying at resort for your towel card. And places to store your cash/bills/currency. ~ I also use it in my Chanel flap at home as a wallet so that I have more room for other things. My wallet is a full size vernis zippy. HTH