Born to English parents, Cook has been working as a model since age 15. A biology student and sales associate in Kriens, she's also an avid sportswoman, practicing athletics and inline skating. She's been dating FC Luzern player Silvan Büchli since 2007.
Cook, who stands 1.80 m (5 ft 11 in) tall, competed as one of the 12 finalists in her country's national beauty pageant, Miss Switzerland, held in Zürich, where she obtained the Photogenic award[2] and the crown of Miss Schweiz, gaining the right to represent Switzerland in Miss Universe 2011, held on September 12th, in São Paulo, Brazil.
Prior to finals night, Cook discovered her grandmother in Cambridge had a cancer recurrence, and would have to undergo chemotherapy. Unable to travel to England, Cook dedicated her participation in Miss Switzerland to her. (ref: http://en.wikipedia.org/wiki/Kerstin_Cook)
