Hailey Bieber shows off her off-duty style in a hoodie and leggings as she heads to a spa after enjoying first night out since giving birth three weeks ago

Hailey Bieber headed out for a relaxing spa day in Beverley Hills on Thursday after letting her hair down on first night out since giving birth to her son Jack Blues.

The model, 27, who welcomed a son with husband Justin three weeks ago, cut a casual figure as she stepped out in a blue hoodie and black leggings.

Hailey put on an effortlessly stylish display, pairing her comfy ensemble with white socks and sports trainers ahead of her self-care day.

She toted around her essentials in a black leather handbag and completed her spa day look with a fashionable pair of oval shades.

The model elevated her beauty with a natural palette of makeup and accessorised with silver hoop earrings.

Hailey Bieber headed out for a relaxing spa day in Beverley Hills on Thursday after letting her hair down on first night out since giving birth to her son Jack Blues

Hailey Bieber headed out for a relaxing spa day in Beverley Hills on Thursday after letting her hair down on first night out since giving birth to her son Jack Blues 

The model, 27, who welcomed a son with husband Justin three weeks ago, cut a casual figure as she stepped out in a blue hoodie and black leggings

The model, 27, who welcomed a son with husband Justin three weeks ago, cut a casual figure as she stepped out in a blue hoodie and black leggings 

Hailey wore her dark hair in a loose straight style and a soft face of natural make-up.

Just a few days before, she joined her pal Kylie Jenner for a dinner date, which was her first public outing after becoming a first-time mother.

The famous friends dined at Il Segreto Ristorante in Bel-Air.

Hailey and husband Justin, 30, welcomed their first child at the end of August and shared the sweet name they had chosen.

Justin shared a photo of their new son's adorably tiny foot, while revealing that they had named him 'Jack Blues Bieber.' 

'WELCOME HOME,' the singer wrote to Jack in the caption. Notably, the couple didn't clarify when their son was born.

Hailey reposted the photo to her Instagram Stories shortly after Justin's initial post.

She captioned it with a teddy bear emoji and a blue heart, writing, 'Jack Blues.'

Hailey put on an effortlessly stylish display, pairing her comfy ensemble with white socks and sports trainers

Hailey put on an effortlessly stylish display, pairing her comfy ensemble with white socks and sports trainers

She wore her dark hair in a naturally straight style, pushing it out of her face as she made her way to the spa
It's the second time the star has been spotted since giving birth

She wore her dark hair in a naturally straight style, pushing it out of her face as she made her way to the spa

She toted around her essentials in a black leather handbag and completed her spa day look with a fashionable pair of oval shades

She toted around her essentials in a black leather handbag and completed her spa day look with a fashionable pair of oval shades

Hailey and husband Justin Bieber welcomed their first child on August 22
Days later, Hailey shared a photo of her freshly manicured hand as she rocked a $2k 'mom' ring

Hailey and husband Justin Bieber welcomed their first child on August 22. Days later, Hailey shared a photo of her freshly manicured hand as she rocked a $2k 'mom' ring

Hailey reposted the photo to her Instagram Stories shortly after Justin's initial post. She captioned it with a teddy bear emoji and a blue heart, writing, 'Jack Blues'

Hailey reposted the photo to her Instagram Stories shortly after Justin's initial post. She captioned it with a teddy bear emoji and a blue heart, writing, 'Jack Blues'

Hailey and Justin were prepared for Jack's birth, as a source told People in July that the two were 'ready to become parents'

Hailey and Justin were prepared for Jack's birth, as a source told People in July that the two were 'ready to become parents'

The name 'Jack' appears to have personal significance for the lovebirds, as it is the middle name of Justin father Jeremy Bieber.

Jeremy split from Justin's mother Pattie shortly after his birth in Ontario, Canada, when both were just 18.

The hitmaker initially saw little of his father as a child, but the two reconnected and have spent significantly more time together since Justin became an adult, solidifying their father–son relationship.

Jack was delivered by Dr. Thais Aliabadi, the same OBGYN that Kylie and sister Khloé Kardashian used to deliver their children, according to the birth certificate obtained by TMZ.

Baby Bieber was born at Cedars-Sinai Medical Center in Los Angeles, where Kylie's daughter Stormi Webster was born in 2018.

Hailey and Justin were prepared for Jack's birth, as a source told People in July that the two were 'ready to become parents.'

'They're planning for the baby's arrival and it's very cute,' they said.

The 'very religious' couple were said to have leaned on their Christian faith and their church community for support as Jack's birth approached.

The insider added that Hailey was 'fiercely protective of her and Justin's growing tribe,' following reports that she was not currently 'close' with her family.