Fashion brand Longchamp has introduced La Maison Unique, a clothing collection that draws on British designer Thomas Heatherwick's design for its boutique in Downtown Manhattan.

The new line, which is named after the store, was described by Longchamp as an "architectural collection" and comprises seven pieces – a wool winter coat, two skirts, a silk scarf, a headband, a top and a bag.

Each of the clothes and accessories features geometric stripes in different green nuances, drawing on Heatherwick Studio's recent update of the Longchamp New York boutique that the studio first designed in 2006.

The La Maison Unique clothing collection's print, which Longchamp calls a "swirling geometric pattern", was designed to evoke the swooping, sculptural steel staircase inside the store.

"Drawing upon the artist's bold and daring bright green staircase, spiral carpets and striking sculptural touches, Longchamp brings New York's interior into some of its FW collection," the brand said.

Heatherwick originally designed the Longchamp shop 20 years ago. For the store revamp last year, his eponymous studio recoloured the stairs in the brand's signature Energy Green colour, which was also used for the new clothing collection.

"It's the idea of not destroying another shop, but actually adjusting it and adapting it going forward," Heatherwick told Dezeen at the time.

"My hope is that we can be a species of adjusters and adapters, but you have to start with making something wholehearted enough so that somebody would care enough to say, 'Let's not knock it down. Let's adapt it and adjust it and repair it.'"

The studio also added a textured green "three-dimensional" carpet to fit the columns in the upper showroom space as part of the renovation.

On the clothes, the staircase's undulating shapes have been transformed into more of an art deco-like print. According to Longchamp, the collection was designed to bring "fashion, art and design into perfect harmony".

Heatherwick also recently created a new rooftop terrace with a pleated shelter for London's Olympia and designed glasses for Japanese brand Jins that draw on the movement of liquid.

The images are courtesy of Longchamp.