To those who don't know what the uploader means by Skin, please follow these steps.

1. Check the normal spawnlist for TF2, under Characters.
2. Don't be fooled by the Red and Blue Spy avatars looking normal. I doubt that the original creator of this addon thought of that predicament.
3. The only way to best describe it to someone new, is it's similarities to texture packs in Minecraft.

My only question is however... Can we get a Masked Dorian variant, from The Heavy?