Hailey Baldwin rocks white sports bra and baggy flannel shirt during solo ...

She may still coming down from that Justin Bieber engagement excitement.

But Hailey Baldwin hasn't forgotten about business.

The 24-year-old cut an incredible figure in a white sports bra and black cropped leggings while arriving at an office building in West on Friday.

Back to business: Hailey Baldwin cut an incredible figure in a sports bra and cropped leggings as she visited an office in West Hollywood on Friday

Back to business: Hailey Baldwin cut an incredible figure in a sports bra and cropped leggings as she visited an office in West on Friday

Hailey looked every inch the gym rat as she had no shame showing up for work in casual wardrobe and rocking toned abs.

Justin Bieber's fiancee arrived to the building in the gym attire but left in an entirely different outfit.

When the model exited the building, she was wearing oversized jeans and a large, green and white, flannel shirt.

Her top was only buttoned a few times, so her toned stomach peaked through.

Work out time: Hailey looked every inch the gym rat as she had no shame showing up for work in casual wardrobe and rocking toned abs

Work out time: Hailey looked every inch the gym rat as she had no shame showing up for work in casual wardrobe and rocking toned abs

Styling: The Arizona native wore her blonde hair up in a high pony tail and wore white sneakers before switching into Adidas slip on sandals on her feet

Styling: The Arizona native wore her blonde hair up in a high pony tail and wore white sneakers before switching into Adidas slip on sandals on her feet

It was obvious she still had the same white and gray sports bra from before on under the flannel. 

The Arizona native wore her blonde hair up in a

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