Richard Nicoll says a grey cashmere jumper is one of the items every woman should have in her summer wardrobe.

The designer - who has designed a one-off summer dress to celebrate the launch of Tropicana's newest product, Trop50 - has given his advice as to what essential items females should own and says his new T-shirt dress is one of them, as well as the jumper.

He exclusively told BANG Showbiz: ''The five main items a woman should have are the Trop50 dress, a T-shirt, jeans, a grey cashmere jumper and a white shirt.''

When it came to designing the dress - which was modelled by Josephine De La Baume at the launch event last week - Richard says his main criteria was to appeal to a ''fashion forward'' woman.

He said: ''I wanted it to reflect the kind of women who buy my clothes and who drinks Trop50 - someone fashion forward, in the know and with discerning taste.''

The Richard Nicoll for Trop50 dress is available exclusively from to celebrate the launch of Trop50, the delicious, new fruit juice drink that has 50 per cent less calories than regular juice. All profits will be donated to Fashion Targets Breast Cancer.