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Topless and on the job in an old Maidenform bra ad. Madness! Photo courtesy of Maidenform

Janie Bryant and Maidenform are partnering to help women look better.

The "Mad Men" costume designer is working with the inner wear company to educate women on how to look their best starting from the inside – by choosing the appropriate undergarments and the right foundations.

Bryant, who is releasing a book, "The Fashion File," this fall, will reach out to Maidenform consumers through social media and events across the country. In addition, Bryant will broadcast her thoughts on Facebook and Twitter.

"We really share the same ideals – that every woman can look great," Bryant tells StyleList of Maidenform. "It's not about shape and size. I was delighted to be invited to work with them."

And there are times when shape wear is a must, Bryant shares. "Proper shapewear is always necessary when you're wearing a dress or a gown. You want to feel like you're controlled. It really helps hold it all in, makes the garment look better, smooths all those lines, and pinches the waist."

However, her current fave from Maidenform is a more casual look.

"I'm obsessed with the Fat Free Dressing leggings," she says. "They totally control your stomach."

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The bra can be worn just about anywhere, according to these archival Maidenform ads.. Photos courtesy of Maidenform

In related news, read about the "Mad Men" women being banned from dieting and exercising.