Marcus first began producing T-shirts and shorts for local surfers, skaters and motocross riders in San Diego, California, in the early eighties.

In order to settle the debate, the first Mixed Martial Arts tournaments, then called Vale Tudo, sprung up throughout Brazil and Bad Boy was first in line to support the sport.

As the sport grew, it became apparent that the gi and traditional gear were hindering the performance of many athletes.

The Vale Tudo (VT) shorts were based on the Sungão, which is the Brazilian word for the swim briefs favored on Brazil's beaches.

[3][4] The Bad Boy branding is currently represented in the EU by https://web.archive.org/web/20161010125026/https://badboy.com/gb/en_gb/ selling MMA equipment and fight wear.