Second Skin of Incorporealness

This clothing can be warn beneath other clothing. It is completely pitch black with a almost inperceptible purple shimmer. It consist of a one piece of pants and shirt.   It gains the following effects when not wearing armor: 5 charges per long rest   When the wearer is hit with a missile from a ranged attack or ranged spell attack or by a melee attack you can use your reaction to make a DC 16 Dexterity saving throw. If Succesfull the wearer becomes incorporeal till its next turn and the missile/attack passes through them. While incorporeal the wearer appears as a purple shimmer at its position and cannot be attacked except by magical effects.       In addition it gains following effects if worn by a someone magical: You can make the second skin grow or disappear from your Arms,Hands or feet at will. It cannot grow smaller than your Torso+legs