Choosing between a backpack and a suitcase for Japan in 2026 depends on your itinerary, but a medium-sized 4-wheel "spinner" suitcase combined with a small daypack is generally considered the most practical option for most travelers. Japan’s infrastructure is incredibly suitcase-friendly, with smooth pavements, ubiquitous elevators in major stations, and the world-class "Takkyubin" (luggage forwarding) service that allows you to ship your bags between cities for about $15–$25. However, if your trip involves frequently moving between smaller towns, staying in traditional Ryokans with narrow stairs, or navigating Tokyo's rush hour, a high-quality travel backpack (40L–50L) offers superior mobility and keeps your hands free. Large backpacks can be cumbersome on crowded subways, so Japanese etiquette dictates wearing them on your front or placing them on floor level. Many savvy 2026 travelers adopt a hybrid approach: using a small rolling suitcase for the bulk of their gear and taking advantage of the luggage forwarding service to "leapfrog" their heavy bag to their next major destination while they explore smaller areas with just a backpack.