3 Last-Minute Halloween Costumes That Incorporate Swimwear

Halloween is tomorrow, and if you’re still without a costume for the Saturday night festivities on your social calendar, don’t worry! If, perhaps, you’ve procrastinated and haven’t yet put together an ensemble for Oct. 31, your swimwear drawer is a great first place to look.
SI Swimsuit’s style team, including fashion editor Margot Zamet and assistant editor Liz Wentworth, have assembled three trendy Halloween costume looks that are all—you guessed it!—centered around swimwear. Whether you have something similar in your closet or are starting from scratch, the following ensembles will have you winning a “best dressed” costume party award in no time.
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Flapper
A flapper is a classic costume that defies yearly trends, and we adore this sparkly one-piece that serves as the look’s focal point. Together, a cute mini skirt, pair of gloves, heels and headpiece make for a head-turning Halloween costume.

- The Midnight Fringe One-Piece Sequin Swimsuit, $174 (wolfandbadger.com)
- Norma Kamali Fringed Mini Skirt, $145 (farfetch.com)
- Mara Jersey Long Gloves, $110 (thefrankieshop.com)
- 1920s Vintage Feather Headband – Beaded Rhinestone Headpiece, $14.54 (shop.com)
- Joni Slingback, $218 (danielleguiziony.com)
Workout Barbie
A 1980s-inspired workout Barbie costume never fails, as you can piece together brights you have from your wardrobe—or shop our selects below. Plus, if you arm yourself with some light dumbbells to complete your look, you’ll simultaneously get a workout in while enjoying the festivities.

- Mara Scoop One-Piece Swimsuit, $99.99 (everythingbutwater.com)
- VSX Elevate™ Legging, $33.99 (victoriassecret.com)
- Wowstyle 2 Pairs Leg Warmers, $11.99 (walmart.com)
- ASICS GEL-1130 Jelly Sneakers, $110 (freepeople.com)
- Women’s Luxtreme Training Headband, $14 (shop.lululemon.com)
Boxer
Channel your inner Christy Martin with this boxing costume that also borrows from your gym bag. A pair of casual Converse (that you likely already own) worn with boxing trunks and gloves elevates the sporty factor of this black-and-white bikini.

- MIMA - JETT Black Crop Bikini Set, $119 (triangl.com)
- TITLE Boxing Edge Boxing Trunks 2.0, $29.99 (titleboxing.com)
- Classic Boxing Gloves, $44.99 (everlast.com)
- Chuck 70 X High Top Shoe, $100 (converse.com)
If you’re in need of additional Halloween costume ideas, be sure to check out our F1 Halloween costume edit, featuring a trio of looks that incorporate lots of leather and plenty of fierce, edgy energy.
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Cara O’Bleness is a writer and editor on the Lifestyle and Trending News team for SI Swimsuit. Prior to joining SI Swimsuit in 2022, she worked as a writer and editor across a number of content verticals, including food, lifestyle, health and wellness, and small business and entrepreneurship. In her free time, O’Bleness loves reading, spending time with her family and making her way through Michigan’s many microbreweries. She is a graduate of Michigan State University’s School of Journalism.