What you need to know this instant.

12 Retro Dresses Under $50

Call it the Mad Men effect, but nothing quite beats those sweet, feminine frocks from the '50s and '60s to stylishly combat the summer heat. From mod shifts to flirty halters, the dresses of these eras have been popularized by plenty of young-and-nostalgic performers, including Lana Del Rey, Z. Berg, and Zooey Deschanel, the queen of vintage-y dresses. (Not only does Zooey wear them frequently in real life, but also on her hit sitcom, The New Girl.)

Zooey and Lana might be retro-cute, but If the idea of wearing actual vintage doesn't appeal to you, it's easy to find the modern interpretations of the style—even if you're on a budget. We've rounded up a dozen affordable dresses—$50 or fewer, to be exact—that look vintage, but feel brand new.

file

A fitted top and flared skirt is flattering on everyone—but it's the quirky polka dot and bow print on this dress that makes it a winner.

file

The small cutouts at the waist keeps it from being too sweet.

file

It's like the dress that Zooey wears in the New Girl intro, except sparkly and therefore more awesome.

file

I imagine Doris Day wearing this dress in one of her Rock Hudson rom-coms.

file

Pair with go-go boots for a thoroughly mod look.

file

Seriously, doesn't this look like something Megan Draper would wear?

file

Adding a cropped jacket and pointy-toed heels will make this dress more 21st century. 

file

This tie collar dress is totally something Nancy Drew would have worn while sleuthing.

file

Very Grace Kelly in Monaco.

file

Whenever I look at this dress, I picture myself eating an ice cream cone and carrying a wicker basket full of kittens.

file

Adding a bright necklace that hits right below the collar gives this a bit of playfulness.

Keep up with the Lucky team on Twitter:

more on luckymag.com

Six of the Most Annoying Dress Codes, Decoded!

"Island fancy", anyone? "Mountain chic"? "Come as you are"??

Yes, You Can Wear Your Leather Pants This Summer!

Without sweating to death or looking like a fool.

24 Plus Size Summer Must-Haves From ModCloth

From high-waisted shorts to halter dresses, Margie shares her favorites.

Brit Marling Causes a Kerfuffle in Prabal Gurung Ruffles

We're smitten with her summer whites.

It's Official: Miley Cyrus Has a Signature Style

2013 has been a big fashion year for the former Disney star.