Reply To: Wearing Tefilah hat in bathroom?

Gornit: That probably doesn’t even qualify as a Tashmishei Mitzvah. There’s no Mitzvah to cover hair. Otherwise all women’s clothes and men’s underwear/pants would be Tashmishei Mitzvah. There’s a Chiyuv to not be Megaleh Ervah. On a separate note, the difference between Tashmishei Mitzvah and Tashmishei Kedushah is whether or not there’s a Sheim Hashem involved.