marlabeeThis looks to me like it's much larger than the tall but narrow Midori/Traveler's. If it fits A5, the size/price is comparable to what Chic Sparrow and others offer via Etsy.
EvaskaNo doubt the one offered here by Massdrop is larger in dimension as an A5 ( 8.27" x 5.83"). But if you'd really rather have an EDC, the vendor I mention, above, offers a package set which includes a regular sized Traveler's Notebook, which is sized 8.25" x 4.33" (brown, black, or camel) which comes with a blank refill, your choice of an additional standard refill (blank, graph, or lined), your choice of a premium refill (light paper, kraft paper, or sketchbook), a zippered pocket, and an extra pack of rubber bands for joining all your refills together, all for $75.90 + ship. No up charges. That is a lot of stuff for the price.