Folded wings when standing
Your wings won't get in your way when you're not flying
Custom trail
You can change the color and effects of your trail by using rocket stars
Flying underwater?
Unless you disable this, you can fly underwater just as you could with a regular elytra
JEI recipes
You can browse the available recipes for Aerobatic Elytras with JEI
Sailing the clouds... from below?
You can now decide what's up and down
Flying in third person view
Generally it's easier to learn to fly in 1st person view, but some people find it easier to fly in 3rd person
Rockets under the wings
When folded, your wings will neatly pack their rockets in your back
Aerobatic Elytra
Unfolded wings while crouching
Detached look around crosshair
The crosshair splits in two when you use the key to look around
Dyed elytras
You can dye your Aerobatic Elytras, like armors, or with banner patterns
Flight crosshair
The crosshair displayed in first person view while flying shows tilt information visually