Amazon Japan has started accepting international pre-orders for Square Enix’s official Octopath Traveler merchandise, launching July 13, 2018 in Japan.
You can’t purchase these products outside of Japan. The only way is to import them from Amazon Japan. We’ve attached the pre-order links and pictures below for your reference.
Octopath Traveler Poster Set (12 A2 size posters)
Octopath Traveler Continent Map Cleaning Cloth (W41.5cm×H27.5cm)
Octopath Traveler Canvas Tote Bag (W48cm×H39cm×D16cm)