They do not take any armor slots, thus can be worn underneath a full set … The variety on offer is second to none with the mod having you with exploring an underwater vault, escaping from prison, travel back in time and much much more.
Army Fatigues + Combat Armor Re-Texture REQUEST! It provides an Agility bonus of 2 and 5 Energy Resistance.
My list of lore-friendly Weapon Mods for Fallout 4.