She has a vested interest! Busty Kim Kardashian goes make-up free as she struggles to choose a healthy juice outside the gym during uncharacteristically casual day out

She's usually preened to perfection. 

But Kim Kardashian opted for an uncharacteristically casual look as she headed to the gym in Beverly Hills, swapping her trademark vertiginous heels for trainers. 

Seeming deep in thought, it's possible the 37-year-old reality star was thinking about her new arrival, amid claims her surrogate is due in just a matter of weeks. 

Low-key: Kim Kardashian opted for an uncharacteristically casual look as she headed to the gym in Beverly Hills, swapping her trademark vertiginous heels for trainers

Low-key: Kim Kardashian opted for an uncharacteristically casual look as she headed to the gym in Beverly Hills, swapping her trademark vertiginous heels for trainers

Going make-up free for the outing, Kim allowed her natural beauty to shine through, looking radiant as she closely examined some green juice bottles. 

Whilst she may have traded in her usual figure-hugging dresses for sportswear, the blonde bombshell still showed off her hourglass curves in a tight white vest and grey jogging bottoms. 

Slightly out of place with her low-key look, Kim toted a large leather handbag with her as she rested outside the gym on the pavement.

Pensive: Seeming deep in thought, it's possible the 37-year-old reality star was thinking about her new arrival, amid claims her surrogate is due in just a matter of weeks

Pensive: Seeming deep in thought, it's possible the 37-year-old reality star was thinking about her new arrival, amid claims her surrogate is due in just a matter of weeks

Big decision: Going make-up free for the outing, Kim allowed her natural beauty to shine through, looking radiant as she closely examined some green juice bottles

Big decision: Going make-up free for the outing, Kim allowed her natural beauty to shine through, looking radiant as she closely examined some green juice bottles

Casual: Whilst she may have traded in her usual figure-hugging dresses for sportswear, the blonde bombshell still showed off her hourglass curves in a tight white vest

Casual: Whilst she may have traded in her usual figure-hugging dresses for sportswear, the blonde bombshell still showed off her hourglass curves in a tight white vest

Go the extra mile like Kim in trainers by Yeezy

Of course Kim Kardashian was one of the first to get her hands on a pair of box fresh Adidas Yeezy Wave Runner 700 trainers. She is married to Kanye, after all!

Forget the Yeezy Boosts; this brand spanking new style is what you should be buying now! Or at least trying to...

We love the retro chunky runner sole and multicolored design of these lace ups, which Kim teamed with grey joggers (also Yeezy, natch!) and a white top. The reality superstar can do sports luxe just as well as bombshell glamour!

Click (right) through to the Yeezy site, or if they're proving tricky to track down, check out the best of the rest in our edit below. Balenciaga and Stella McCartney have got some swoon-worthy sneakers!

* PRICES MAY NOT BE AS ADVERTISED

Kim's outing comes amid claims that the surrogate carrying her child with Kanye West is due before Christmas.  

For months it had been claimed Kim and Kanye's surrogate was due in late January 2018.

The couple already have daughter North, aged four, and son Saint, aged one, whilst their third child is expected to be another girl.  

It was added that the stars are in 'regular contact' with the surrogate and the woman will be 'discussed' on an upcoming season of Keeping Up With The Kardashians.

The publication also claimed that the famous couple's $20m Hidden Hills, California dream home, which is undergoing its second renovation, will be ready by Christmas as well.   

Bootylicious: Kim also donned a pair of figure-hugging grey jogging bottoms that clung to her famously peachy posterior as she settled down on the pavement 

Bootylicious: Kim also donned a pair of figure-hugging grey jogging bottoms that clung to her famously peachy posterior as she settled down on the pavement 

All about the accessories: Kim's only jewellery on the day was a delicate gold necklace

All about the accessories: Kim's only jewellery on the day was a delicate gold necklace

All about the accessories: Slightly out of place with her low-key look, Kim toted a large leather handbag with her as she rested outside the gym on the pavement

All about the accessories: Slightly out of place with her low-key look, Kim toted a large leather handbag with her as she rested outside the gym on the pavement

Kim and Kanye are said to be 'over the moon' as they prepare to expand their family. It was first reported in July that Kim opted to go the surrogate route due to health complications during her first two pregnancies.

Kim, who suffered with life threatening placenta accreta when carrying North and Saint, is said to have been referred 'by an agency' to find the right surrogate.

TMZ claims the famous duo paid $45,000 for the surrogate to carry their third child.  

'The entire family is over the moon. Kim had been looking for a surrogate for months until recently when she found the perfect candidate,' a source told People.

Juiced up: Kim seemed in good spirits as she handed a drink over to her friend after seeming to make her choice between the healthy green juices 

Juiced up: Kim seemed in good spirits as she handed a drink over to her friend after seeming to make her choice between the healthy green juices 

Check it out: Kim had seemed deep in thought after her daily workout

Check it out: Kim had seemed deep in thought after her daily workout

'They want everything to be perfect and for the baby to be extremely healthy,' the insider added. 'They don’t want any complications and Kim is providing an ideal eating regimen and diet so everyone knows what the baby is consuming before it's born.'

TMZ reports that the surrogate is prohibited from smoking, drinking or doing drugs during the pregnancy. She is also banned from using hot tubs, hair dye and eating raw fish.

Khloe and Kylie are also reportedly pregnant, but have yet to make any statements. It is believe both are due in February. 

Happy families: Kim's outing comes amid claims that the surrogate carrying her child with Kanye West is due before Christmas.  The couple have daughter North, four, and son Saint, one,

Happy families: Kim's outing comes amid claims that the surrogate carrying her child with Kanye West is due before Christmas. The couple have daughter North, four, and son Saint, one,

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