Why not streamline 2 items into one. Here is my passport or field notes sleeve. Fits both perfectly and securely
The passport case has a small card pocket on the front for at least 2 cards and even a boarding pass.
The edges have been carefully burnished and polished to have a high end smooth finish.
It is saddle stitched by hand with complementary Olive thread and will last a lifetime of traveling and EDC use in luxury!