This is the famous Traveler's Notebook from the Traveler's Company Japan (formerly Midori) and is a must have for travelers and spirited explorers alike.
It starts out as a basic notebook with a leather outer. But then you begin to add things; extra notebooks, kraft files, brass accessories etc. Make it as thick as you like and attach plastic pockets to keep important travel information safe. As you travel through life it becomes a catalogue of your personal adventures.
It also makes a great every day notebook, journal or planner.
The refills from the Traveler's Company Japan are all made of high quality fountain pen friendly paper.