Custom armor model not working

So I've been trying to add a custom armor model for an armor I'm making and everytime I do it, it gets completely glitched. I 've tried updating blockbench, remaking the model and so on, but nothing seems to work. Here are some images for clarification:

https://cdn.discordapp.com/attachments/679691282670551043/8058432372346… This is the front of the model.

https://cdn.discordapp.com/attachments/679691282670551043/8058435022349… Here it is in blockbench.

Please help me this is so annoying.