Former Marks and Spencer clothing boss Kate Bostock has been named executive director of product and trading at online clothing retailer Asos.

She will join the company and board in January, and will replace product director Robert Bready, who has resigned from the board after seven years.

"I'd like to thank Rob for his significant contribution to the company. He played a major role in the development of the Asos story and I and the rest of the board are very grateful to him," said CEO Nick Robertson.

"Our product and trading team now exceeds 350 people. We are fortunate to have Kate bring us her wealth of experience from some of the biggest names in retailing as we strengthen our retail disciplines and put in place the structures needed to manage the next phase of our growth."

In July, Marks and Spencer announced Bostock would leave the UK's largest clothing retailer by "mutual consent" after the company saw first quarter general merchandise sales plunge. 

There was speculation in November last year that she was in discussions to take on a senior role at Asos.