Biggie said he wears boxers so his balls can breathe but fashion may not be on the same page...

Equmen Launches Support Underwear

A new Sydney-based company, Equmen, is bringing the body-slimming undergarment concept into the men’s arena, with a line of T-shirts, briefs and trunks making its debut in the U.S. early next year. Designed with input from physical therapists, the tight, form-fitting garments are said to help improve posture, blood circulation and, perhaps most importantly, visibly streamline the body.

Similar technology is already popular in the performance activewear market, with brands like Under Armour, Nike and Skins offering compression underwear that helps improve athletic performance. Equmen, however, is geared toward...