In 1984, Marquit created a range of women's bras and underwear in fluorescent neon colored lace, which she sold to Bloomingdale's for $42,000.[1] This was the first time that underwear in neon colours was available.[2] Marquit has since released underwear ranges in such fabrics as tie-dyed lace, fluorescent sheer mesh.[2] and camouflage and animal prints.[4] The fabrics in fluorescent colors are hand-dyed,[2] and the products are made by hand.[5] She has also designed clothes including blouses, skirts, and also bright colored suits in vinyl in 1995.[6] She opened a boutique on New York's West 15th Street in 2005.[7]
Marquit has designed underwear for the movie Wild Orchid II, and for celebrities including Michelle Pfeiffer and Madonna.[1][7] Marquit was commissioned by Tim Burton to make vinyl hot pants, shirts and mini-skirts to complement the underwear he had purchased for his girlfriend of the time, Lisa Marie.[1] Designers Marc Jacobs and Ghost featured variations of her pink fluorescent lace bra in their runway shows in 1994.[1]
Deborah Marquit was inducted into the (CFDA) Council of Fashion Designers of America in 2009.[8]