While wearing an elytra, a player is able to flap their wings and jump in the air an extra time. This extra jump is more powerful than a normal jump, though be careful not to alert any wardens with the sound of your wings.
Additionally, a player can fall further without taking damage while wearing an elytra, and a player is only able to glide while in the End.
Related Mods
The Flappy Wings mod provides a very similar feature, but more well-rounded and configurable. I encourage you to check it out!
