Hailey Bieber wears a black leather jacket and sunglasses while

Hailey Bieber wears a black leather jacket and sunglasses while showing off her street style in LA

Hailey Bieber is effortlessly cool in a black leather jacket and sunglasses while showing off her street style in LA

Hailey Bieber was the picture of effortless fall fashion as she stepped out in Beverly Hills on Sunday.

The supermodel and entrepreneur, 25, wore an oversized black leather bomber jacket with drawstring sweatpants.

Mrs. Bieber paired the look with a pair of slim black Oliver Peoples sunglasses from the brand’s collaboration with Fai Khadra.

Ready for fall: Hailey Bieber was the picture of effortless fall fashion as she stepped out in Beverly Hills on Sunday

Ready for fall: Hailey Bieber was the picture of effortless fall fashion as she stepped out in Beverly Hills on Sunday

Hailey’s sleek look went well with her glossy black manicure and she complemented the look with black sneakers.

Her luscious brunette hair was parted in the middle with the front strands tucked behind her ears.

Beneath her trendy “dad style” outer layer, she accentuated her toned stomach a bit in a black crop top.

And beneath her sleek sunglasses, the catwalk regular sported a lightly made-up face, complete with a glossy lip.

Her look: The supermodel and entrepreneur, 25, donned an oversized black leather bomber jacket with drawstring sweatpants

Her look: The supermodel and entrepreneur, 25, donned an oversized black leather bomber jacket with drawstring sweatpants

Stylish: Mrs. Bieber paired the look with slim black Oliver Peoples sunglasses from the brand's collaboration with Fai Khadra

Stylish: Mrs. Bieber paired the look with slim black Oliver Peoples sunglasses from the brand’s collaboration with Fai Khadra

Also on Sunday, Bieber took to Instagram to wow her 48.4 million followers with a carousel of images from the day before.

She was glamorous in a coral halterneck dress designed by Andreas Kronthaler for Vivienne Westwood.

The structured dress featured a ruffled design that stretched diagonally across the look with an integrated push-up bust.

The model showed off her cheeky cleavage in the look, which featured a plunging neckline.

New Content: Also on Sunday, Bieber took to Instagram to wow her 48.4 million followers with a carousel of images from the previous day

New Content: Also on Sunday, Bieber took to Instagram to wow her 48.4 million followers with a carousel of images from the previous day

Hailey’s stunning look was for the Barbara Berlanti Heroes Gala benefiting F*** Cancer, held at the Barker Hangar in Santa Monica.

She lifted her figure in a pair of Giuseppe Zanotti nude heels and accessorised it with a pair of diamond Tiffany & Co. earrings.

Her hair was pulled back tightly with a precise center parting as she styled the curls in a neat bun at the back of her head.

The Rhode Skincare founder used a simple caption for the post, writing “1. October” with an emoji made of leaves.

Busty: The model showed off her cheeky cleavage in the look, which featured a plunging neckline

Busty: The model showed off her cheeky cleavage in the look, which featured a plunging neckline

Bieber’s gorgeous look was complemented by flattering Dewey makeup that showcased her already stunning face.

Posing in front of a circular glass installation by James Turrell, she sported shimmering bronze eyeshadow.

Her cheeks were made up, highlighting her high cheekbones and she finished off the look with a moisturizing plum lip stain.

Chic: Her hair was pulled tightly back with a precise center part as she styled the curls in a neat bun at the back of her head

Chic: Her hair was pulled tightly back with a precise center part as she styled the curls in a neat bun at the back of her head