How often does your head flop forward or to the side when you fall asleep on the plane, and then you jerk awake hoping no one noticed?
Or maybe you are sitting in an aisle seat and have to get up to let your seatmate out for a few moments. You climb over the aisle armrest like a gymnast and the other passenger needs to be even more flexible as they scoot over their seat to get to yours, and then gracefully try to find a way to navigate the armrest without knocking into you.
What an endeavor! What if you could just swing your legs to the side without the armrest in the way?
Watch and see how.