Here is the glitch...

And here are the mods that I have...

Still got the problem.

Try updating AW

No the server will need to update but you can test it in single player

Will that work on a server with this version?

It still didn't work
Edit: It only happens for the front and back but not the sides

Need to remove mods 1 by 1 to find out what one is doing it.

Other people on the server don't have the same problem. I am using a mod pack so we all have the same mods.

Have they tried putting on the armourers skin you are using?

No, but it happens for any skin even the ones that render on others. Also its only the pixels that are merging with my skin. The shoes aren't glitching because they are one pixel of the skin.

How did you make this skin? Did you turn the override option on when making it?

I made it normally. And the override option is off, I will try with it on.
Edit: It's not the override option that's causing it.

Is it something to do with the config? I have tried it without other mods, but now I am convinced that it's something to do with the settings in the config. Also I have tried changing my graphics settings in game to see if that would do anything, that didn't work.
Edit: I just don't know what settings do what in the config.

I have been trying to fix it all morning, I still have not fixed it.

Try removing SkinPort.

Have you tried deleting your config file?

I fixed it....
I first removed SkinPort, then changed something in the config (I forget what I changed) then it worked.