Called Fashion Break, the promotion will give 100 consumers the opportunity to shop until
they drop with £1,000 cash.
Wrappers will also include
£2 vouchers for
leading online fashion retailers.
A £6 million campaign will be fronted by a "real -life model", who will be uncovered on a Kit Kat Senses -sponsored episode of Living TV's Coleen's Real Women. It will also include a new TV ad, breaking on May 4, sponsorship of the London Clothes Show and PR activity with Girls Aloud.
Consumers can find out if they've won at kitkat-perfectbreak.co.uk by entering a code found inside promotional wrappers.
Trade communications manager Graham Walker said: "Cash promotions are a great incentive for consumers to purchase, especially in these current economic times.