But it seems that when she’s not working Ashley Olsen really takes a break from the fashion world, even when it comes to dressing herself.
The 26-year-old ditched any sense of glamour in favour of a frumpy fur coat which swamped her tiny frame making her look more like her former child star-self playing dress up than a fully-fledged fashion designer.
Windswept: Ashley Olsen braved the elements as stepped out in New York on Saturday in a very large coat
While the sun might have been shining down in New York on Saturday, the Olsen twin seemed keen to keep the cold at bay.
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Shielding her eyes from any winter glare, she slipped on a pair of her favourite John Lennon style sunglasses.
As she strolled along in the city, her hair was caught by the wind, causing it to fly everywhere creating an amusing image.
Swamped: Ashley's figure got completely lost in her large fur coat which she held tightly around her
Loafer lady: The 26-year-old wore a pair of black shoes with a baggy pair of socks on show
Beneath her coat, she wore a pair of trousers cropped to her ankles, with her slouchy socks on show.
She completed her look with a pair of black loafers and wore a camel coloured bag across her shoulder.
While Ashley’s appearance on Saturday may have not have won her many awards in most people's fashion books, the retired actress does not need anyone's style approval as, between her and her twin sister Ashley, their different fashion lines are estimated to be worth $1 billion.
Lennon: The designer wore her favourite style of sunglasses - round like John Lennon's
And, unlike many celebrities who are quick to create lines baring their name for department stores, the twins have successfully turned themselves from child stars to highly respected designers in the fashion world.
One of their lines, The Row, has been endorsed by Rachel Zoe and includes one of the world's most expensive backpacks as part of its collection that retails at over $55,000.
Meanwhile Mary Kate is currently loved up with her 42-year-old boyfriend Oliver Sarkozy, while Ashley appears to be single at present.
Single: While her twin Mary Kate is dating Oliver Sarkosy, Ashley seems to currently be single
Just a few days earlier her ex-boyfriend Justin Bartha was spotted holding hands with his new girlfriend, personal trainer Lia Smith.
Ashley and Justin dated for two years before breaking up in 2011, but since The Hangover actor she hasn’t been linked to any men.