The IATA standard for cabin-baggage dimensions sits at 55 x 40 x 20 cm with weights varying widely between carriers. British Airways typically permits 56 x 45 x 25 cm at 23 kg, JAL accepts 55 x 40 x 25 cm at 10 kg, ANA matches the JAL allowance, Lufthansa keeps 55 x 40 x 23 cm at 8 kg, and budget carriers like Wizz Air enforce 40 x 30 x 20 cm at 10 kg under Wizz Priority.
Bag Selection for Multi-City Asia
Hard-shell polycarbonate cases from Rimowa Essential Cabin S or Samsonite Cosmolite Spinner 55 carry approximately 35 litres at around 2.1-2.3 kg empty weight, leaving 6-8 kg for contents within the typical 8-10 kg cap. Soft duffels including Tumi Voyageur or Patagonia Black Hole 32L sit lighter at around 0.6-0.9 kg but cannot stand vertical on rotation luggage belts, suiting carry-aboard placement under the seat.
Asian Carrier Allowances
JAL premium-cabin carry-on policies typically permit two pieces at 10 kg each, ANA Premium Economy 2 at 10 kg combined, while economy permits 1 piece plus 1 personal item. Bullet train Shinkansen oversized baggage above 160 cm linear total requires advance reservation through the Smart EX system a couple of days ahead at around 1,000 yen surcharge. The compact 55 cm cabin case satisfies both Shinkansen and aircraft constraints comfortably.
Packing Strategy for 14-Day Multi-City
Compression cubes from Eagle Creek Pack-It Specter or Peak Design Travel Cube halve clothing footprint and accommodate 5-7 days clothing within a 35-litre case. Laundry stops at Tokyo, Osaka or Hong Kong hotels add roughly 1,500-3,000 yen per load. Skyscanner’s mobile app baggage size checker compares dozens of airlines’ cabin rules against the planned itinerary, useful when LCC segments mix with full-service carriers on the same trip.