Kim Kardashian back to signature style within 3-months post delivery

Washington D.C.: It just took three months post delivery for Kim Kardashian to be back with her signature style.

The 35-year-old ' Keeping Up With the Kardashians' star was spotted out and about in Los Angeles on March 25, wearing a sleeveless black maxi dress, paired with matching stiletto sandals, a '90s-style choker and sunglasses, reports E! Online.

She also wore her black and golden ombre-dyed hair down and carried a light blue jeans jacket.

Kim, who often dons black and has been seen sporting similar black dresses over the past week, has been working hard to lose the baby weight after welcoming Saint West with husband Kayne West.

In January, she announced she had started the low-carb, high-protein Atkins diet to drop the pounds and had become a spokesmodel for the company.

She also underwent the same diet two years ago after giving birth to her and Kanye's first child, daughter North West.