My physics professor was Italian and a very snappy dresser. Although, he also wore shorts and soccer jerseys some days.

Very funny guy and could do trig out to several decimal places in his head. He was one of those rare professors that was doing research but still a great teacher. He was responsible for making math 'click' for me and helped me realize the joy of math.

My physics prof wore white socks with soccer ball-patterned slide on sandals. Normal business casual other than that, unless you count hair that hadn’t been bruised in a decade. Year round even in snow. And rode his bike to campus like that daily. Very fun dude.

My Physics professors literally wore pocket protectors, with pens in them. They were also both ultra-marathoners which is surprisingly common among that species.