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, multibrand 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 H&M High-Sheen Dress ($25) looks luxe, thanks to the shimmering fabric and easygoing fit. The color 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 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 Madewell 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. I like it paired with Mary Janes or with loafers and socks.

The green jewel tone of this J.Crew Open-Back Silk Charmeuse Dress ($328, plus 30 percent off with code FESTIVE) gives it a luxe appearance, while the side slit amps up the sex appeal. It also features a head-turning open back, which makes it an all-around irresistible look.

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.

Get into the holiday spirit with this J.Crew Puff-Sleeve Velvet Dress ($198, plus 40 percent off with code FESTIVE). It is not only suitable for a winter wedding, but it'll also pair well with everything else on your agenda, from a festive office event to evening cocktails.

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

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

This Fitted Crepe Bustier Dress ($228, plus 30 percent off with code FESTIVE) is the timeless LBD you'll turn to season after season. The sweetheart neckline amps up the femininity, while the slit dials up the sex appeal.

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 drenched 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.