French fashion designer Sonia Rykiel has passed away aged 86. Sonia, who established her own eponymous Paris-based fashion house which became one of France's most famous, began working in the fashion industry from the age of 17. Her label is known for its signature striped knitwear which rose to popularity in the '60s and it has remained a design signature ever since. In 1995, Sonia's daughter Nathalie Rykiel was appointed Artistic Director and CEO of the company and it continues to reinvent itself while also remaining true to Sonia's original vision. In 2012, the designer shared her personal struggle with Parkinson's disease, revealing her 15 year health battle..