Are Speedos “micro swimsuits”? Sometimes. But not always—and it depends on what someone means by “Speedo.” Speedo is a brand name that became shorthand (especially in the U.S.) for any men’s tight swim brief. In reality, Speedo sells a wide range of men’s swimwear: classic briefs, square-legs, jammers, trunks, and more. So “a Speedo” could …