ok, first, sorry for my English, I speak Spanish. I think the problem you have is the name you put, you just have to put in the name of the armor a "slayer_1" for the first part and "slayer_2" for the second part, for example, "geodite_slayer_1" and "geodite_slayer_2", remember that this name is only for the texture and does not affect the name you want to give the armor.
and i can't add one
ok, first, sorry for my English, I speak Spanish. I think the problem you have is the name you put, you just have to put in the name of the armor a "slayer_1" for the first part and "slayer_2" for the second part, for example, "geodite_slayer_1" and "geodite_slayer_2", remember that this name is only for the texture and does not affect the name you want to give the armor.