FORTUNE -- The days of over-sized jeans sagging from the derrieres of men everywhere are no more. Skinny jeans, tailored pants, and fitted oxfords are de rigeur, leaving little room for excess fabric in the undergarment department. Boxers or briefs used to be the only question men needed to ask themselves, but today, the options have grown. Five years ago, Tom Patterson was a medical-device sales rep by day and an avid-viewer of CNBC's The Big Idea with Donny Deutsch by night. "All of the featured products or services ... were created out of personal frustration," recalls Patterson. "I found myself constantly looking around, asking, 'What can I make better?'" During the financial crisis, Patterson was laid off from a sales job he held for six years. During his down time, he realized that one of the biggest fashion annoyances he faced while he was working was a fabric gut -- that baggy bump just above the belt line caused by a loose-fitting undershirt.