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.

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

Keep up with the Lucky team on Twitter:

more on luckymag.com

Seven Style and Beauty Secrets We Learned This Week

Including: how to make swimsuit shopping 1,000 times more fun.

You'll Want Everything Our Fashion Director Packed This Weekend

We sure do.

Can Shapewear Be Sexy?

As it turns out, it absolutely can.

12 Hot Looks Inspired By Our Favorite Summer Movies

Everything you need to channel your favorite films of the season.

What's In Our Associate Beauty Editor's Memorial Day Makeup Bag?

Lucky's associate beauty editor Megan O'Neill shares the products she's packing this weekend.