Olivia Palermo goes for understated elegance in grey coat and leather trousers as she walks her pampered pooch 

She's always impeccably dressed, whatever the occasion.

And even walking the dog is an excuse to get dressed up for fashionista Olivia Palermo, who looked effortlessly cool as she took her pet pooch Mr. Butler out for some fresh air on Sunday.

Olivia showed off her style credentials in her off-duty look as she left Sant Ambreous restaurant in New York City after stopping off for a bite to eat.

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Stepping out in style: Olivia Palermo was spotted leaving Sant Ambreous restaurant in New York City on Sunday with her dog Mr. Butler in tow 

Stepping out in style: Olivia Palermo was spotted leaving Sant Ambreous restaurant in New York City on Sunday with her dog Mr. Butler in tow 

The 29-year-old beauty was sporting a smart grey coat and leather trousers paired with suede trainers.

She added a red patterned scarf and a leather burgundy handbag, and hid behind a pair of blue-framed sunglasses.

Olivia's white Maltese Terrier Mr. Butler looked adorable, wearing his own little coat.

Unimpressed: The cute Maltese Terrier didn't look too happy about being picked up to cross the road

Unimpressed: The cute Maltese Terrier didn't look too happy about being picked up to cross the road

Chic: The fashionista looked lovely as ever in her grey coat, leather trousers and trendy shoes

Chic: The fashionista looked lovely as ever in her grey coat, leather trousers and trendy shoes

Get high/low like Olivia in her Whistles jacket

Olivia Palmero is the queen of mixing high and low fashion. She validates her reign when walking around NYC in her high street Whistles coat paired with her luxe Lanvin high top trainers, Dior bag and leather leggings.

This effortlessly cool outfit is perfect for walking her dog during the transitional spring season. The Whistles jacket is a must have with it's menswear inspired tailoring. It's just so versatile! Imagine draping this over a chic LBD and lace up heels for a dinner date.

Whistles is a UK based high street brand that focuses on well made, well priced clothing that is modern but also timeless.

Sadly Olivia's jacket is not available online, but head over to Whistles to check out other masculine, minimalist overcoats. If you're hankering for something similar, we found several below. Our favorite is the one from Thakoon Addition but the one from Forever21 is a bargain at under $70!

* PRICES MAY NOT BE AS ADVERTISED

The socialite, who made a name for herself on MTV's 2008 reality series The City, has become a fully-fledged style icon due to her fashion background and impeccable taste.

She is now front row at all the major fashion shows and mans her own style hub OliviaPalermo.com.

Olivia, who tied the knot with male model Johannes Huebl last year, claims she was always perfectly put-together growing up.

Low key look: The former The City star dressed up her outfit with an eye-catching scarf and a leather bag
Going solo: The brunette beauty left her husband Johannes Huebl at home

Low key look: The former The City star dressed up her outfit with an eye-catching scarf and a leather bag

Get high/low like Olivia in her Whistles jacket

Olivia Palmero is the queen of mixing high and low fashion. She validates her reign when walking around NYC in her high street Whistles coat paired with her luxe Lanvin high top trainers, Dior bag and leather leggings.

This effortlessly cool outfit is perfect for walking her dog during the transitional spring season. The Whistles jacket is a must have with it's menswear inspired tailoring. It's just so versatile! Imagine draping this over a chic LBD and lace up heels for a dinner date.

Whistles is a UK based high street brand that focuses on well made, well priced clothing that is modern but also timeless.

Sadly Olivia's jacket is not available online, but head over to Whistles to check out other masculine, minimalist overcoats. If you're hankering for something similar, we found several below. Our favorite is the one from Thakoon Addition but the one from Forever21 is a bargain at under $70!

* PRICES MAY NOT BE AS ADVERTISED
Mini fashionista: Mr. Butler was just as stylish as his owner in his cute knitted jumper 

Mini fashionista: Mr. Butler was just as stylish as his owner in his cute knitted jumper 

‘My mother always taught me that you don’t leave the house until you’re fully dressed – make-up and everything', she told Marie Claire.

'Even when I was young I enjoyed fashion – I didn’t have a grunge phase or anything like that, I didn’t even have posters as a kid.

'I rode horses every day, that was my focus and probably reflected in my style back then.'

Laid back day: The star strolled around the city after enjoying a spot of lunch

Laid back day: The star strolled around the city after enjoying a spot of lunch

Man's best friend: Olivia was carrying the cute dog under one arm as she headed home for the day

Man's best friend: Olivia was carrying the cute dog under one arm as she headed home for the day