These Midi Dresses Are Modern and Sexy, Perfect For the Next Party on the Calendar

For the minimalists looking for flattering pieces that won't cost a fortune, multi-brand retailer Source Unknown has something suitable for every style. Its designs feel fresh yet timeless, and they'll be sure to earn a permanent spot in your closet, including this Source Unknown Twist Bustier Dress ($68, originally $82).

This Lioness Crossing The Line Midi Dress ($79) reveals sexy cutouts that make it extremely appealing. The fitted bodice and stretchy knit fabric are a bonus.

Creating ethical clothes that focus on form and function, Wray founder Wray Serna has earned a much-deserved spot on our radar. You can see the influence of art and design in this Wray Dion Dress ($298).

This Romwe Cocktail Midi Dress ($30) makes a slinky number for a girls' night out or a hot date. The side slit amps up the sex appeal.

This High-sheen Dress ($25) looks luxe, thanks to the shimmering fabric and easygoing fit. The colour also gives it a sort of regal elegance.

As a major destination for super-polished dresses, Rahi has earned its place in our evening wardrobes. Launched in 2016, all the brand's designs are sustainably made, and this Rahi Bondi Jacie Midi Dress ($150) is perfect for the fashion conscious consumers.

It can be hard to blend style and comfort in a fashionable way, but this Velvet Geneva Ruched Cap-Sleeve Midi Dress ($119, originally $158) solves this challenge effortlessly. You'll love the stretchy yet fitted bodice.

The green shade of this Zara Weave Dress ($90) is so rich, it will honestly make anyone stop and stare. The length makes it perfect to take from the office to afterwork parties, including weddings.

The Button-Front Puff-Sleeve V-Neck Midi Dress ($148, plus 20 percent off with code HOLLYJOLLY) has an understated elegance that makes it extremely desirable. We like it paired with Mary Janes or with loafers and socks.

This BR x Harbison Smocked Apron Dress ($169) belongs in their fancy evening selection. The bow dials up the glamour.

This Enza Costa Silk Rib Angled Neck Midi Dress ($225) oozes sex appeal, confidence, and femininity. It's a great one to dress up or down, depending on the occasion.

The back of this Chain Strap Satin Effect Dress ($60) alone has us sold. It's honestly jaw-dropping.

This & Other Stories Off Shoulder Tulle Midi Dress ($249) looks straight out of a fairytale with its voluminous neckline and air of royal elegance. Save it for a fancy gala or a themed holiday party.

This Kobi Halperin Hunter Printed Midi Dress ($374, originally $498) is a polished choice for an office gathering or to make a comeback. The bodice is flattering, while the print is eye-catching.

This Norma Kamali Slip Dress ($108, originally $165) is a covetable style, designed in a luxurious looking velvet and drench in an eye-catching shade of pink. Norma Kamali has, in fact, made the perfect velvet party dress.

Want to bring an edge to their party wardrobe? Opt for this eye-catching Side Ring Dress ($70). It's bold, fashion forward, and extremely flattering.

For some tasteful skin reveal, opt for this Andrea Iyamah Reni Dress ($225). If they're feeling brave, they can rock it on a first date or for date night.

This Asymmetric Dress ($70) is elegant and playful, perfect for date night or a spontaneous friends' night out. What is there not to love about it?

Whether they pair this Mango Flower Print Dress ($100) with tall boots and a wool coat, or wear it with sneakers and a trench coat, it will look feminine, edgy, and cool.

You'd get a lot of mileage out of this Enza Costa Tencel Cashmere Rib Midi Dress ($375), because you can dress it up for a date or keep it cool and casual for the office or errands. Trust us, you'll turn to it season after season.