Mac attended the
School of the Art Institute of Chicago, where he earned his
BFA in 1999. It was in Chicago where the Geoffrey Mac launched his latex clothing company. His line was sold at
Marshall Field's flagship store after Mac won their "Distinction in Design" contest. His designs were later featured in publications such as
Rolling Stone and
V. In 2004, he was further recognized in the
Chicago Tribune as the "Young Designer of the Year". One of his designs was acquired for the permanent collection of the
Chicago Historical Museum. for high-profile clients such as
Lady Gaga for her
Monster Ball Tour,
Scissor Sisters, and
Britney Spears for her 2011
Femme Fatale Tour. Later he also collaborated with hip hop rapper
Cazwell on a range of form-fitting underwear, based on the colours used in the rapper's 'Ice Cream Truck' video. ==Media appearances==