What are the opening hours?

Monday 11am - 7:30pm Tuesday 11am - 7:30pm Wednesday 11am - 7:30pm Thursday 11am - 7:30pm Friday 10am - 8pm Saturday 10am - 8pm Sunday 11am - 6pm

Formals XO

The ONLY store with gorgeous Prom dresses at King of Prussia Mall. Check out our other location at Oxford Valley Mall.

We want your special occasion shopping experience to be just that – an experience. Our seasoned staff requires an appointment for bridal gown and ballgown shopping, and would highly recommend one for prom as well. To set an appointment, please call us at either of our locations or fill out our registration form! We also require patrons be over 16 or accompanied by a parent/guardian because our gow

ns are very delicate and may require assistance to try on. Jovani, Sherri Hill and Top 10 Prom are among the dress brands we carry.

09/03/2026

The dress everyone will be asking about. 💎✨

Turn heads from every angle in a look made for your moment. From the stunning open-back detail to the flattering fit and gorgeous color, this dress was made for nights you’ll never forget.

Whether it’s Homecoming, a formal, a special event, or your next big night out, find the look that makes you feel completely unforgettable at Formals XO.

✨ Trending styles
💎 Flattering fits
💕 Looks you won’t find everywhere
📸 Made for the photos

Your night. Your style. Your XO moment.

Shop Formals XO and find the one. 💖

07/30/2026

Sparkle ✨ this fall in the stunning new Hoco collection by Ashley Lauren! 💖

🛍️ Shop now before your favorites are gone!

EveningWear ShopLocal SummerStyle FormalFashion

07/29/2026

Making an entrance is our favorite sport. ✨ Shop our Homecoming new arrivals now at the link in bio!

🛍️ Shop now before your favorites are gone!

WeddingGuestDress EveningWear ShopLocal SummerStyle FormalFashion

07/09/2026

💌 I’ve got a text! A new bombshell has entered the villa… and she’s ready to couple up for prom 💕✨💖

07/08/2026

Sherri Hill Spring 2027 is all about elegance with a modern edge—and we can’t wait to show you the stunning designs for prom.

💖✨

06/28/2026

✨ HOLIDAY WEEKEND SALE STARTS NOW! ✨

Find your perfect look for less at Formals XO! 💖

👗 Dresses as low as $199
💃 Stunning styles for prom, weddings, galas, and every special occasion.

Don’t wait—shop our Holiday Weekend Sale before your favorite styles are gone!

📍 Visit Formals XO today!

06/24/2026

Main character energy loading… ✨ Shop our Homecoming drop now at the link in bio!

🛍️ Shop now before your favorites are gone!

WeddingGuestDress EveningWear ShopLocal SummerStyle FormalFashion

06/05/2026

☀️✨ SUMMER SALE IS HERE! ✨☀️
Your perfect formal look just got even better.
🔥 10-50% off on select styles 👗 Elegant dresses 🩵 Sophisticated cocktail ✨ Must-have looks for every special occasion
Whether you’re shopping for weddings, parties, prom, or your next big event, now is the time to save big on the styles you love.
🛍️ Shop now before your favorites are gone!
📍 Formals XO 📅 Limited Time Summer Sale
WeddingGuestDress EveningWear FashionSale ShopLocal SummerStyle DressSale FormalFashion

06/04/2026

Thank you to everyone who shopped with us for Prom and Formal Events in Spring 2026! We do this for the smiles on all of your faces. 😊 👗 💫

Don’t forget to wear and share your prom night look from

06/03/2026

This is our favorite part! Seeing everyone loving their gowns and having a wonder time at prom! 👗 ✨

Don’t forget to wear and share your prom night look from

Address

160 N Gulph Road King Of Prussia Mall
King Of Prussia, PA
19406

Opening Hours

Monday	11am - 7:30pm
Tuesday	11am - 7:30pm
Wednesday	11am - 7:30pm
Thursday	11am - 7:30pm
Friday	10am - 8pm
Saturday	10am - 8pm
Sunday	11am - 6pm

Telephone

+16102657766

Website

https://www.formalsxo.com/

Alerts

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