That texture pack make a different things... Like changing the sounds and textures.
His gives you 17 different armour textures, 23 itens texures,16 elytra's textures, different sky composition and gives you the possibility of stack some items...
Just change the name of the item in the anvil, and the magic will be happen!
In the winrar.zip file have the instructions and names to give for your items.
For more information, go to "Image".
Made for: delacourte5641(Urso Branco)
Version of game: 1.13.x
Actual version of texture:1.3
*Need optifine to work