Creating an armour for Fallout 4. Part 1
This tutorial shows all the main steps you need to follow to create an armour or an outfit from scratch for Fallout 4. If you only want to change the textures of an existing piece of clothing or change its properties and bonus, just skip the first part of the tutorial. If you want to adapt existing armours or outfits to other bodies you will have to follow the steps explained here, except that you won't have to create the mesh (but you may probably have to adapt it to the new body), the textures or the UV maps.
Currently the tools used for modelling are not completely adapted for Fallout 4, there are some steps that require some manual adjustments. Bethesda hasn't either released the GECK for this game, yet, so some other tools made by modders are required at this stage. This will surely change in the future months and this tutorial will be updated when required.