“A few years ago I was on a flight from LA to Singapore (takes 16+ hours). I’m a tall dude – around 6’3” (~190cm) – so I don’t fit very well in economy class seats. On most planes my knees are often very close or right up against the seat in front of me. This makes it impossible for the person in front of me to recline their seat, which usually isn’t a problem once the person in front of me sees how cramped I am in those tiny seats. “