Happy and single! Jennifer Garner showcases her long legs in workout gear after rocking perfect 'revenge dress' at Oscars 

She showed off the results of her dedicated exercise routine on the red carpet at the Oscars on Sunday. 

Jennifer Garner was keeping up the good work on Wednesday as she hit the gym in Brentwood, California. 

The 43-year-old looked happy as she stepped out in her work out gear in the sunshine with a female pal. 

Working up a sweat: Jennifer Garner was keeping up the good work on Wednesday as she hit the gym in Brentwood, California

The actress showcased her long lean legs in skin tight yoga pants and a slim-fitting hoodie. 

She pulled her chestnut tresses into a a ponytail, leaving some tendrils loose around her make-up free face. 

The Alias star covered her eyes with dark glasses as she finished up a call on her cell phone. 

Beauty: The actress showcased her long lean legs in skin tight yoga pants and a slim-fitting hoodie

The slim beauty was sure to rehydrate after working up a sweat, as she carried a water bottle next to her friend - who looked remarkably similar to the friend she was pictured with at the Vanity fair party on Sunday. 

Her off-duty appearance was a world away from her highly groomed red-carpet arrival in a strapless and backless gown at the weekend. 

She wowed in an Atelier Versace dress with black sandals, minimal jewelry and a clean updo at her first Academy Awards since splitting with husband Ben Affleck. 

Healthy: The slim beauty was sure to rehydrate after working up a sweat, as she carried a water bottle

Radiant: She pulled her chestnut tresses into a a ponytail, leaving some tendrils loose around her make-up free face

Gym buddy: The 43-year-old looked happy as she stepped out in her work out gear in the sunshine with a female pal - who looked remarkably similar to the friend she was seen with at the Vanity Fair party on Sunday

Both Jennifer and her estranged husband attended the ceremony, as well as the Vanity Fair post-Oscars party.

The couple were seen being cordial to each other during the evening, as Jen was knockout in the perfect revenge dress which highlighted her stunning figure.  

The star lost 190 excess lbs last year when she separated from her Batman actor husband after ten years and one day of marriage, and spilled her heart out to Vanity Fair in a bombshell interview that was released on Friday. 

Busy: The Alias star covered her eyes with dark glasses as she finished up a call on her cell phone

Working for it: Her off-duty appearance was a world away from her highly groomed red-carpet arrival in a strapless and backless gown at the weekend

She not only talked about Ben killing her 'dream' of being happily married, but also touched on the subject of their nanny - with whom he was claimed to be in a relationship.    

In her interview, the Dallas Buyers Club actress hinted heavily that Ben cheated on her and also heavily suggested that he did have romantic relations with Christine Ouzounian, 28, even though he claimed last summer the accusation was 'garbage.'

'We had been separated for months before I ever heard about the nanny,' said the Miracles From Heaven actress. 'She had nothing to do with our decision to divorce. She was not a part of the equation. Bad judgment? Yes.' 

Toned: She showed off the results of her dedicated exercise routine on the red carpet at the Oscars on Sunday

The toughest part of the allegations was talking to her children about it, she said. 

'It's not great for your kids for [a nanny] to disappear from their lives,' she said. 'I have had to have conversations about the meaning of "scandal."'

Jennifer and Ben, who have three children together (Violet, aged 10, Seraphina, aged seven, and Samuel, aged three), announced their split in June, just a month before talk of his involvement with the nanny. 

As far as his claims that the affair never happened, Jennifer said: 'He’s still the only person who really knows the truth about things. And I’m still the only person that knows some of his truths.'   

For the kids: Jen and Ben were seen being cordial at the Vanity Fair post-Oscars party, as Jen was knockout in the perfect revenge dress which highlighted her stunning figure - next to her blonde pal