Petra Stunt (born Petra Ecclestone; born 19 December 1988) is a British-born heiress, model, fashion designer and socialite.Growing up, she wanted to be a fashion designer. She decided to make menswear because it is a “bigger niche” and because “womenswear was too saturated”. At the age of 19, she created the menswear label FORM, which was sold into retailers including Harrods from October 2008. In April 2009 it was announced that Petra had signed a contract with the Croatian clothing manufacturer Siscia. After she reportedly grew “tired of the grind of having to oversee the range”, Form collapsed into administration 14 months after start-up, before being liquidated. She launched an accessories line called Stark in September 2011.