The Card Size TN: The notebook that actually fits in your pocket
Most notebooks claim to be pocketable. The 20th‑anniversary Card Size actually is — it’s 110 × 75 mm, roughly palm‑sized, and it slips into a jeans pocket without a fight. That’s the whole point, and it’s where this design shines.
The set includes five MD‑paper refills, a cotton zip case with a card slot on one side and a zippered pocket on the other, a kraft file, and the connecting bands. TRAVELER’S COMPANY says refills will be sold separately once the set run is gone — something worth knowing before you buy, though not a reason to panic‑buy.
What it’s best at is being present. Call it half wallet, half notebook — that’s exactly how people use it. Keep a couple of cards in the cotton case and, if you don’t get a receipt, jot the amount down on the spot instead of trusting your memory. A reviewer in Japan made the same point: it doubles as a secondary wallet for short errands, and having both wallet and notebook together means you actually write things down instead of forgetting them.
One small thing to expect: the Card Size’s cover elastic is firmer and less stretchy than the Regular and Passport elastics at first, so it can be harder to close. Some users swap in a softer band after a few days. Budget for a short break‑in period, or plan to replace the band — it’s a minor annoyance, but one that can bother people during week one if they weren’t warned.
And where it stops is clear. It won’t hold a passport — as one Xiaohongshu user put it: great for a pocket, but not suitable for passport duty. If you need that, get the Passport size. It’s also too small to replace a main wallet: storage is limited, so it won’t carry all your cards and cash. Long writing sessions aren’t its purpose either — it’s for quick notes, lists, amounts, a few lines at a time. If you like spreading a full page out in front of you, this size will feel cramped.
Picture the use case: you’re walking to the shop with your main wallet at home or in a bag, and this Card Size is in your pocket with two cards and a pen. Something happens, you write one line, close it, and keep walking. That tiny, practical moment is exactly what the Card Size was made for. If that fits your day, this is the one.