How to pronounce “ribbed” in English

"My shorts didn't and were thus, vietato. Trust me on this, the shorts I was wearing were as unremarkable and unobjectionable as athletic shorts could be. They were preciselythe type of shorts: ribbed waist, drawstring, thick cotton, material reaching halfway down the thigh that every college since the dawn of academia has printed its logo on and soldin the student store. They weren't flamboyant shorts, they weren't tattered shorts, they weren't skimpy shorts, they were archetypical, boring athletic shorts. Why did it matter