Do swimmers wear a jock cup?

Answer 1

Most swimmers just wear Speedo or Speedo-like swimming suits. Some swimmers wear a "swimmers jockstrap" too. A "swimmers jockstrap" has a narrow 1-inch waist-band, which is smaller than the standard 3-inch waist-band of a standard jockstrap. The narrower 1-inch waistband will not reveal the jockstrap as much and the jockstrap waist-band will stay under the swimming suit. However, male swimmers who want to show a bigger "package" may chose to wear a cup-jockstrap under their swimming suit to enhance their masculine appearance. But they don't really need the protection of a cup when they are swimming. So it is all a mater of personal preference.