Amy Schumer has never backed down from body shamers, and she isn't cowering from them now. On April 5, South Shore Swimwear owner Dana Duggan generated backlash when she said the "Trainwreck" actress "looks like a pig" and didn't belong in a swimsuit on the cover of InStyle Magazine.

"I'm tired of the media and publications trying to push the fat agenda," Duggan told The Huffington Post. "It's not healthy, and it's not pretty. What is wrong with featuring healthy and fit cover models?"

Rather than calling her out, Schumer clapped back in one of the pettiest moves ever.

On April 9, the 35-year-old comedian posted a series of photos to her Instagram story. She wore a swimsuit in every single one.

The photos showed Schumer paddle-boarding, riding on a boat, walking on the beach, and living her fullest life.

In the final photo, the "Snatched" actress left a simple message for Duggan and other body-shaming trolls.

"I feel great," she wrote. "No haters can [eff] with my baseline."

Schumer's response aligned with her mantra about maintaining her confidence as she ages.

"What's good about not being a model is that it’s not the thing I trade on," she told InStyle. "Once I start looking older, that won't affect me. I have never gotten anything done because I'm, like, so gorgeous. I'm good-looking enough that I can work in the business. I get enough attention from men that I feel good. I see pictures of myself now, and I look younger than I think of myself. It hasn't scared me yet."

Being comfortable in one's skin is priceless. Schumer has mastered it, and no body shamer — including Duggan — can shake her immovable confidence.