Workout style! Jessica Alba emerges in maxi grey zippered sweatshirt after exercise session at Los Angeles gym

Jessica Alba covered up in a maxi zippered sweatshirt on Monday after working out in Los Angeles.

The 36-year-old actress looked stylish in the simple crew neck top that extended down below her knees.

The Sin City star also sported black leggings and finished her outfit with bright white sneakers and matching ankle length socks. 

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Working out: Jessica Alba kept it simple in a monochromatic outfit on Monday while working out at a gym in Los Angeles

Working out: Jessica Alba kept it simple in a monochromatic outfit on Monday while working out at a gym in Los Angeles

Jessica had her brown hair pulled back into a messy bun and accessorized with mirrored sunglasses.

She added a pop of color with a green purse. 

Jessica welcomed her third child son Hayes Warren on December 31.

She and husband Cash Warren, 39, also have daughters Honor, nine, and six-year-old Haven together. 

Busy star: The 36-year-old actress welcomed her third child in late December
Keeping busy: The 36-year-old actress co-founded The Honest Company in 2012

Busy star: The 36-year-old actress welcomed her third child in late December

Flawless complexion: The Sin City star showed her flawless complexion without makeup

Flawless complexion: The Sin City star showed her flawless complexion without makeup

Fashion style: Jessica looked stylish in a grey maxi sweater

Fashion style: Jessica looked stylish in a grey maxi sweater

Jessica last week shared an Instagram photo of herself with her Bad Boys TV show co-star Gabrielle Union, 45.

The Honest Company co-founder will play police detective Nancy McKenna in the spin-off of the Bad Boys movie franchise.

Gabrielle will reprise her role of Special Agent Sydney 'Syd' Burnett from the 2003 sequel Bad Boys II starring Will Smith and Martin Lawrence. 

Cute couple: The Dark Angel star last month shared a snap of herself with husband Cash Warren on Instagram

Cute couple: The Dark Angel star last month shared a snap of herself with husband Cash Warren on Instagram

The NBC show will mark Jessica's return to TV after last starring as Max Guevara in Dark Angel from 2000 until 2002 on Fox.

The untiled Bad Boys spin-off will follow Syd as she gets a fresh start in the police force after previously working as a DEA agent.

Jessica and Gabrielle are both co-executive producers. 

Family time: Jessica and Cash are shown in December with daughters Honor and Haven

Family time: Jessica and Cash are shown in December with daughters Honor and Haven

TV show: Gabrielle Union, shown with Martin Lawrence and Will Smith in 2003's Bad Boys II, will co-star with Jessica in an untitled TV spin-off coming to NBC

TV show: Gabrielle Union, shown with Martin Lawrence and Will Smith in 2003's Bad Boys II, will co-star with Jessica in an untitled TV spin-off coming to NBC