WASHINGTON (AP) — Before Pennsylvania Sen. John Fetterman checked himself in to the hospital for clinical depression in February, he walked the halls of the Senate stone-faced and dressed in formal suits. These days, he’s back to wearing the hoodies and gym shorts he was known for before he became a senator.

Male senators are expected to wear a jacket and tie on the Senate floor, but Fetterman has a workaround. He votes from the doorway of the Democratic cloakroom or the side entrance, making sure his “yay” or “nay” is recorded before ducking back out. In between votes this past week, Fetterman’s hoodie stayed on for a news conference with four Democratic colleagues in suits, the 6-foot-8 Fetterman towering over his colleagues.

People close to Fetterman say his relaxed, comfortable style is a sign that the senator is making a robust recovery after six weeks of inpatient treatment at Walter Reed National Military Medical Center, where his clinical depression was treated with medication and he was fitted for hearing aids for hearing loss that had made it harder for him to communicate. His hospitalization came less than a year after he had a stroke during his Senate campaign that he has said nearly killed him, and from which he continues to recover.

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Senators do occasionally vote in casual clothing — Republican Sen. Ted Cruz of Texas, for example, is known for sometimes arriving in gym clothes. But Fetterman’s regular attire is redefining fashion in the stuffy Senate. He’s turning heads on a daily basis as he walks the halls in his signature baggy Carhartt sweatshirts and saggy gym shorts, his hulking figure surrounded by much more formally dressed Washington types buzzing around the Capitol.