bedrock_server/definitions/attachables/elytra.json

{
  "format_version": "1.10.0",
  "minecraft:attachable": {
    "description": {
      "identifier": "minecraft:elytra",
      "materials": {
        "default": "elytra",
        "enchanted": "elytra_glint"
      },
      "textures": {
        "default": "textures/models/armor/elytra",
        "enchanted": "textures/misc/enchanted_actor_glint"
      },
      "geometry": {
        "default": "geometry.elytra"
      },
      "animations": {
        "default_controller": "controller.animation.elytra.default",
        "default": "animation.elytra.default",
        "gliding": "animation.elytra.gliding",
        "sneaking": "animation.elytra.sneaking",
        "sleeping": "animation.elytra.sleeping",
        "swimming": "animation.elytra.swimming"
      },
      "scripts": {
        "parent_setup": "variable.chest_layer_visible = 0.0;",
        "animate": [
          "default_controller"
        ]
      },
      "render_controllers": [ "controller.render.armor" ]
    }
  }
}