In Edit mode select all the faces of the body that are completely hidden by the armour or outfit you are creating. Once you've copied all the weights from the body to your armour and set the dismemberment vertext groups select the body in Object mode and go to Edit mode. Part 1 Creating an armour for Skyrim Create the _0.nif armour mesh Cut parts of the body hidden by the armour You can find the first part of the tutorial here Creating an armour for Skyrim. This is the part 2 of the tutorial for creating an armour or outfit for Skyrim.
2.1.5 Adjust the armour after testing it in game.2.1.4.2 Add the armour to the game using the CK.2.1.4.1 Add the armour as a replacer of an existing armour.2.1.3.3 Apply the textures on both sides of the mesh.2.1.1 Cut parts of the body hidden by the armour.