will be useble means that we can chose what skin we will have with no armor
I mean clothing skins. I suppose, hair, complexion, skin colour and possible undeclothes will be adjustable from the start.
Will be usable means if the clothes skin is applicable technically, like by begging from a GM, or stored in SDK game files, but is possible unobtainable by conventional means.
Will be used means if the clothes skin can be obtained by player by conventional means in 2238, like craftable armor.