The large ones we see when a bird stretches its wings are “flight feathers,” but they also have fluffy ones called “down feathers.”
Why aren't airliners equipped with parachutes? That question is answered on this Moment of Science.
But unless you have a body like a kangaroo, the amount of energy needed to hop regularly when your mass is above a certain amount will be more than you can afford. Try hopping to work tomorrow instead of walking and see how long you can manage it.