British fashion icon Vivienne Westwood shows her latest Red Label collection at London Fashion Week. And this year, she's delivering a strong message about the environment. Meanwhile, British label "House of Holland" looked to the 70's, science fiction and bicycles for inspiration.

Westwood delivering environment message on London catwalk.

Sharp tailoring, which is always a Westwood feature, was seen in dresses, trousers and jackets. Models showing the designer's Red Label Autumn and Winter collection wore the specially-made shirts, alongside Westwood's signature silhouettes. Checks, tartans, wool and mohair were true to the look Westwood is well known for.

The designer said the collection was true to her distinctive British style - but showed influences from other cultures.

Vivienne Westwood said, "What we do is always British, even if we're inspired by Africa or the North Pole or whatever and so you've got these really fantastic clothes. Very very flattering and very lively because they've got all this influence from other places but they still look British. It's just a way of putting things together and it's a certain don't care attitude about clothes."

As a passionate campaigner for the environment, Vivienne Westwood used t-shirts to highlight the plight of people around the world who've lost their homes due to huge changes in the environment from climate change.

Westwood delivering environment message on London catwalk.

The event on Sunday also attracted some outrageous costumes - from a gold and black head piece on one woman, to a Cleopatra outfit on one young guest.

Designer Henry Holland unveiled his Autumn and Winter show at London Fashion Week on Saturday.

With a soundtrack of Queen's "Bicycle Race" in the background, he opened the show with models dressed in block color tunics, red, blue, yellow and pink. This gave way to blue overalls worn on top of a red work shirt and blue flare trousers, a direct reference to the hit American 70's tv show "Mork & Mindy."

Henry Holland said, "The show was a Seventies, lux sportswear influence with a futuristic, Seventies, sci-fi theme, kind of 'Mork and Mindy' do the Tour de France."

Holland concludes the show with his trademark fur coats in a variety of colors and patterns. This season is black and red zig-zag.

London Fashion Week ends with menswear on Wednesday.