“2qwerty: Putting on multiple garments at once is Kasheh L’shich’cha. Taking them off is not.”
???? ??? ????? ????? ?’ ? where he says that one should be machmir about undressing as well.
Rav Shlomo Zalman Auerbach (?????? ???? ?”? ? ?”?) however says that one only needs to be cautious about things that are explicit (i.e. only dressing – not undressing).