Originally Posted by
Twohitwonder
Technically, water bottles aren’t supposed to be stowed in seatback pockets. So, the FA was correct. Most of us us look the other way on that one. I really only pay attention to heavier items in pockets.
Can you provide a reference for this prohibition? The only limitation I have seen is on weight (as noted above), so if one's water bottle is less than 3 pounds (roughly 1.3 liters), it should be legal in the seat back pocket.