Minecraft Custom Optifine Texture Pack Help

I'm trying to make a custom texture pack for a server I play on by using optifine to change the named items textures. I'm doing it for armour and I'm unsure of how to do it with the armour models. So far I have done the


Mytexturepack/assets/minecraft/optifine/cit/

Method With subfolders of :

         reinforced_diamond_helmet
         reinforced_diamond_chestplate
         reinforced_diamond_leggings
         reinforced_diamond_boots It works for the item texture but not the model, how would I implement the model?