Inside the magazine, Hudson wears two sheer, black dresses with intricate designs. The actress looks statuesque and confident in the skintight outfits that show off her incredible figure and six-pack.
The mother-of-two told Allure that while she does workouts that make her look "insane," she doesn't rely on a routine to stay in shape.
"It's brain chemistry," said the actress. "People think you need two hours a day to do it, and that's bullshit. If you work out 20 minutes a day in some way, you're going to see changes. Like, I've had days where I have the kids -- Ryder's on his bike, and I put Bing in a stroller -- and I will run and sprint up hills."
Hudson also talked about her breakup with Bing's dad, "Muse" singer Matt Bellamy. The two called off their engagement in December 2014.
"Relationships ending are painful, and you can choose to carry that or you can choose to reframe it," said Hudson. "If Matt and I had a great relationship, we would still be together, but we chose to move on because we had different visions of how we wanted to live our lives."
It doesn't look like Hudson's had any trouble moving on, as she was spotted with singer Nick Jonas in Florida just a few weeks ago. Hudson also has no shortage of celebrity friends to party with, as she was recently seen out with Britney Spears and gal pals Gwyneth Paltrow and Nicole Richie.
Be sure to pick up the November issue of Allure when it hits newsstands Oct. 27, 2015.
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