first of all nakedness is not a sin.
in the absense of lust
clothing in mortal existence can also be an armor of protection for the flesh among bugs and insects and even the suns rays.
jesus said that fine clothing is for kings. the paradiegm we live with in mortality will not be exactly the same in prohibitions in the kingdom of God but white linen is a symbology of purity and can be a symbol of status of holiness and authority and glory as well.