Why do suitcases have double zippers?
Why do suitcases have double zippers? Durable double-layer anti-theft zippers make luggage much more difficult to break into.
Why do they put cross on luggage?
Depending on the procedures (and what has been detected), this may involve marking the bag, or just advising customs officers if they want to be able to monitor you without raising your suspicion. With that Cross signs on your bag, custom officer can check.
Do hard or soft suitcases hold more?
Soft-shell luggage, while similar in external size to hard-shell luggage, can frequently offer slightly more internal storage space (as long as inline wheels and not spinners are part of its features).