Bella Hadid goes make-up free as she steps out with her pet pooch... days after revealing secret battle with Lyme disease

She's famed for her model beauty and impeccable dress sense.

And Bella Hadid, 19, exposed the true reality of her naturally good looks as she was pictured off-duty in SoHo, New York, on Wednesday, shortly after it was revealed she's secretly been battling Lyme disease.

The younger sister of Gigi Hadid displayed her flawless skin and perfect complexion as she headed to Vera Wang's office with her beloved pet dog Hendrix in her arms.

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Flawless: Bella Hadid, 19, exposed the true reality of her naturally good looks as she was pictured off-duty in SoHo, New York, on Wednesday, shortly after it was revealed she's secretly been battling Lyme disease 

Flawless: Bella Hadid, 19, exposed the true reality of her naturally good looks as she was pictured off-duty in SoHo, New York, on Wednesday, shortly after it was revealed she's secretly been battling Lyme disease 

Flirt with flares this season in jeans by Frame Denim

Whether she's on the red carpet, the runway or just running errands Bella Hadid always looks incredible.

The Californian model and sister of Gigi, stepped out in New York yesterday looking every inch the cool off-duty super in a casual Adidas track jacket and a pair of flared jeans. Fans of the skinny may have been hoping that the flare would fly away as autumn arrived but this is one trend that's not going anywhere.

And if you are yet to be converted to this very flattering style then let us convince you. Unlike skinnies, flares actually work to lengthen your legs and to elongate your silhouette. A high waist will flatten the tummy so you'll be looking longer and leaner in seconds.

Click (right) to buy Bella's bell bottoms by Frame Denim at MATCHESFASHION.COM or shop our edit below for more purse-friendly versions.

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The 19-year-old model's skin looked naturally dewy with not a blemish in sight as she cradled her canine companion in her arms.

Bella embraced the rare opportunity to dress down and sported a pair of blue flared jeans, a black tracksuit top by Adidas and matching trainers.

Highlighting her naturally striking features even further, the catwalk queen wore her glossy brunette locks into messy high ponytail.

Bed-hair, don't care: Bella, 19, fashioned her glossy brunette locks into a messy updo as she worked a casual ensemble en route to Vera Wang's office in SoHo

Bed-hair, don't care: Bella, 19, fashioned her glossy brunette locks into a messy updo as she worked a casual ensemble en route to Vera Wang's office in SoHo

Her sighting came hours after she celebrated her birthday in the city so it's little wonder she opted for a less is more approach.

On Tuesday night. she stepped out in nothing but a sheer black dress and matching undergarments as she toasted her 19th birthday.

Daring to bare, the 19-year-old model was sure to set tongues wagging in the sexy ensemble as she posed in a suggestive fashion alongside a female friend. 

Sultry display: The raven-haired model stepped out in nothing but a sheer black dress and black undergarments when enjoying a night of birthday celebrations in New York on Tuesday

Sultry display: The raven-haired model stepped out in nothing but a sheer black dress and black undergarments when enjoying a night of birthday celebrations in New York on Tuesday

Not afraid to flash the flesh, the daughter of The Real Housewives of Beverly Hills' Yolanda Foster and Mohamed Hadid pulled out all of the stops in a black cut-out dress which skimmed the tops of her slender thighs. 

The high-neck design did little to hide the black underwear she was sporting beneath which was comprised plunging bra and high-waisted knickers.

Attempting to keep the look a little conservative, the teen also donned a sharp black tuxedo jacket and thigh-high suede boots. 

Daring to bare: The clotheshorse was sure to set tongues wagging in the sexy ensemble as she posed in a suggestive fashion alongside a female friend

Daring to bare: The clotheshorse was sure to set tongues wagging in the sexy ensemble as she posed in a suggestive fashion alongside a female friend

Not easing up her provocative image however, the stunning star couldn't resist putting her model looks to good use and posed for some sultry snaps, one of which saw her hold her friend by the back of the head as she rested her chin, somewhat submissively, against her bronzed thigh.

Another shot showed the peachy-lipped brunette cradling a small puppy while looking seductively into the camera lens.

Her daring display comes just a short while after it was revealed she's secretly been battling Lyme Disease.

It was recently revealed that Bella is battling Lyme Disease, an illness also suffered by her mother Yolanda Foster, 51,  and brother Anwar Hadid, 16

It was recently revealed that Bella is battling Lyme Disease, an illness also suffered by her mother Yolanda Foster, 51,  and brother Anwar Hadid, 16

Speaking at the Global Lyme Alliance Gala, where she was honoured, the model's mother Yolanda made the shocking revelation that Bella and her younger brother Anwar, 16, were both suffering from Lyme disease too.

Yolanda, who was diagnosed with the debilitating condition in 2012, told the audience her 'babies have been struggling in silence'.

Addressing the crowd in an emotional speech, Yolanda said: 'When my two youngest children, Bella and Anwar, were also diagnosed with chronic Lyme disease in early 2012.

Speaking out: Yolanda, who was diagnosed with the debilitating condition in 2012, told the audience her 'babies have been struggling in silence' with the disease

Speaking out: Yolanda, who was diagnosed with the debilitating condition in 2012, told the audience her 'babies have been struggling in silence' with the disease

Monochrome misses: Bella is the younger sister of equally popular model Gigi Hadid

Monochrome misses: Bella is the younger sister of equally popular model Gigi Hadid

'Watching my babies struggle in silence in order to support me in my journey, struck the deepest core of hopelessness inside of me.'

Lyme disease is a bacterial infection spread to humans by infected blacklegged ticks, which are found in woodland areas and on pets. When ticks bite into human skin, the bacteria Borrelia burgdorferi infects the person’s body.

Sufferers usually experience a circular rash, muscle pain, joint pain and flu-like symptoms after infection. And if left untreated, the infection can spread to the joints, heart and central nervous system.  

Heart-warming: Addressing the crowd in an emotional speech, Yolanda said: 'Watching my babies struggle in silence in order to support me in my journey, struck the deepest core of hopelessness inside of me'

Heart-warming: Addressing the crowd in an emotional speech, Yolanda said: 'Watching my babies struggle in silence in order to support me in my journey, struck the deepest core of hopelessness inside of me'

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