anon1m0us:
Who really cares if one wears a hat or not! THat does not make one a good jew!
Rabbi Solavatchik, the undisputed leader of Modern Orthodoxy cared. In fact, Rabbi H Schachter reports, that there was a man in Boston who davend at RS minyan. He had about an hour walk. During the summer heat, he left his hat and suit jacket in Shul, so he wouldn’t be as hot during his hour-long walk each way.
Rabbi JB Solavatchik told him (in usual way..) to that kovod Shabbos would be for him to wear his hat in the heat.