PUMP! Underwear - Sportboy Collection (Canada, 2021)

PUMP Underwear is a distinctive underwear brand from Canada. The collection consists of briefs, boxers and jockstraps.
Underwear has always been a product where Marketing the Rainbow comes into play: after all, when showing the articles, you put them on a model. That model is near naked (and let's say "aesthetically pleasing"), and thus more easily appeals to gay men.