Justin Bieber's ex Hailey Baldwin showcases her VERY pert derriere and toned midriff in fishnet stockings as she flaunts a rock-chic look in Sydney  

Justin Bieber's ex-flame Hailey Baldwin is one of the IT models of the moment.

And the 20-year-old stunner showed exactly why on Sunday as she stepped out in Sydney for a day of shopping.

Hailey sported a rock-chic outfit, wearing a pair of denim jeans over risque fishnet stockings. 

Model of the moment! Justin Bieber's ex-flame Hailey Baldwin sported a rock-chic look on Sunday as she stepped out in Sydney for a day of shopping 

She offered glimpses of her toned midriff, while the top of her pert derriere was on full display.

The blonde beauty was spotted trying to pull up her low slung jeans and protect her modesty a number of times during the outing.

And it appears under the fishnet stockings the model was sporting a silver body chain, slung around her waist. 

The niece of Hollywood star Alec Baldwin completed her look with a New Kids On The Block T-shirt and a pair of statement over-sized reflective purple shades.

She wore a full face of make-up for the outing, while her long blonde locks were tied into an effortless ponytail.

Hailey's  EXTREMELY pert derriere was on full display, while her fishnet stockings protruded above her jeans 

Trim pins! Hailey's enviable legs were showcased as she sported skinny denim jeans for the outing 

Hailey seemed pensive as she tried on rings with a mystery friend in the exclusive Sydney suburb of Paddington.

The devout Christian carried a copy of Thomas Nelson's book Jesus Today, as well as a beige clutch bag.   

The pretty blonde and close friend of Bella and Gigi Hadid is rumoured to have split with pop superstar Justin four months ago. 

Friends in high places: The pretty blonde is a close friend of models Bella and Gigi Hadid

Washboard: The 20-year-old stunner offered glimpses of her toned midriff in her rock ensemble 

Buckle up in a pair of black ankle boots like Hailey's

As winter comes marching in a pair of sturdy black ankle boots are a godsend. As Hailey Baldwin's Balenciaga shoes prove, there's no excuse to scrimp on style.

The star's black high-shine boots come adorned with multiple straps, buckles and hardware, which give an instant cool kick to this classic shape. From catwalk to kerb, biker babe-inspired boots, like Hailey's, are unapologetically chic.

We love how she's styled them simply with a pair of jeans. If you fancy wearing them for a night out, try them with a party dress to add balance to a cutesy cut.

You can hotfoot it to the Barney's website right now and get your hands (or should that be feet) on Hailey's exact pair. However, be warned they come with a weighty price tag. We've put the legwork in for you, so take a look at our fierce, functional and trend-driven black ankle boots in the carousel below that are comfortably more affordable.

* PRICES MAY NOT BE AS ADVERTISED

Meanwhile, the honeycomb-tressed model made headlines last month when she hit back at critics who claimed she has had plastic surgery.

Speaking to OK! Magazine, Hailey said: 'Everybody thinks I've had plastic surgery.'

'Do people want me to go to a doctor and have them examine my face so they can tell people I haven't?'

Which one? Hailey seemed pensive as she tried on rings with a mystery friend in the exclusive Sydney suburb of Paddington

'Everybody thinks I've had plastic surgery': The glamazon has previously squashed rumours she has gone under the knife

She added: 'My mum's family call her and ask, "Did Hailey do her lips? Did she do her nose?"'

And that wasn't the first time Hailey has defended herself amid claims she has gone under the knife. 

Taking to Twitter at age 17, she wrote: 'There have been multiple comments made to me over social media about my looks not being natural or altered by surgery.'

Hailey is believed to be single, after splitting with pop superstar Justin four months ago. She was seen trying on rings during her day out in Sydney on Sunday

That look: She wore a full face of makeup for the outing, while her long blonde locks were tied into an effortless ponytail

'Everybody grows up, your face changes and you mature and that's what is happening to me,' she continued.

She added: 'It makes me feel quite horrible to think that people think I look so unnatural. So for the last time, I have never touched my face surgically.'

With or without surgery, Hailey's career has gone from strength-to-strength.

The starlet was announced as the face of Guess, and has worked for Dolce & Gabbana, Tommy Hilfiger and Elie Saab. 

Faithful: The devout Christian carried a copy of Thomas Nelson's book Jesus Today

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