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FORMALS XO
NOW BOOKING APPOINTMENTS FOR PROM 2027 BOOK NOW
King Of Prussia Mall
Book appointment (610) 265-PROM
Oxford Valley Mall
Book appointment (215) 702-8586
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    • All Prom
    • Alyce Paris
    • Amarra
    • Ashley Lauren
    • Ava Presley
    • Colors Dress
    • Ellie Wilde
    • Faviana
    • Faviana Curves
    • Formals XO Exclusives
    • Jasz Couture
    • Jessica Angel
    • Johnathan Kayne
    • Jovani Prom
    • La Femme - Prom
    • Portia & Scarlett Couture
    • Portia & Scarlett Evening
    • Portia & Scarlett Pageant
    • Portia & Scarlett Prom
    • Primavera
    • Primavera Curvy Plus
    • Scala
    • Sherri Hill
    • Stella Prom
    • All Homecoming
    • Alyce Semi-Formal
    • Amarra Homecoming
    • Damas de Vizcaya
    • Faviana Cocktail
    • Formals XO Exclusives Short
    • Jasz Homecoming
    • Jessica Angel Cocktail
    • LaFemme Semi-Formal
    • Portia & Scarlett Cocktail
    • Primavera Short
    • Scala Cocktail
    • Sherri Hill Cocktail
    • Sophia Thomas HOCO
    • All Quinceañera
    • House of Wu Quinceanera
    • Morilee Vizcaya
    • Portia & Scarlett Ballgowns
    • Princesa
  • BOOK APPOINTMENT
  • Prom Gowns

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PROM
  • Alyce Paris
  • Amarra
  • Ashley Lauren
  • Ava Presley
  • Colors Dress
  • Ellie Wilde
  • Faviana
  • Faviana Curves
  • Formals XO Exclusives
  • Jasz Couture
  • Jessica Angel
  • Johnathan Kayne
  • Jovani Prom
  • La Femme - Prom
  • Portia & Scarlett Couture
  • Portia & Scarlett Evening
  • Portia & Scarlett Pageant
  • Portia & Scarlett Prom
  • Primavera
  • Primavera Curvy Plus
  • Scala
  • Sherri Hill
  • Stella Prom
SHERRI HILL COLLECTIONS
  • Sherri Hill Prom
QUINCEANERA & SWEET 16
  • House of Wu Quinceanera
  • Morilee Vizcaya
  • Portia & Scarlett Ballgowns
  • Princesa
HOMECOMING
  • Alyce Semi-Formal
  • Amarra Homecoming
  • Damas de Vizcaya
  • Faviana Cocktail
  • Formals XO Exclusives Short
  • Jasz Homecoming
  • Jessica Angel Cocktail
  • LaFemme Semi-Formal
  • Portia & Scarlett Cocktail
  • Primavera Short
  • Scala Cocktail
  • Sherri Hill Cocktail
  • Sophia Thomas HOCO
BRIDESMAIDS
  • JESSICA ANGEL COLLECTON
MOTHER of the BRIDE/GROOM
  • Montage
SALE
  • Sale Gowns and Dresses
MORE WAYS TO SHOP
  • NEW NEW NEW
  • Ballgowns
  • Bridal Gowns
  • Beaded/Sequin
  • Homecoming
  • Glitter Fabric
  • High-Low
  • Lace
  • Mermaid
  • Prom Gowns
  • Plus Sizes
  • Plain
  • Prints
  • Quinceanera

Prom Gowns

Our collection includes styles by Sherri Hill, Jovani, Jessica Angel, and many more top formalwear designers! Whether you're looking for a glittering mermaid silhouette or a simple, satin A-line dress, we guarantee you'll find something stunning to fall in love with at our boutique. Shop below or in stores at Formals XO, Langhorne, PA and King of Prussia, PA.

Styles

19-129 Madison James Prom
IN STOCK

19-129 Madison James Prom

Original price $358 Sale price $325.99
3604 Colors Dress
IN STOCK

3604 Colors Dress

$336
3566 Colors Dress
IN STOCK

3566 Colors Dress

$385
810171 Clarisse Prom
IN STOCK

810171 Clarisse Prom

Original price $513 Sale price $499.99
PS25187 Portia and Scarlett
IN STOCK

PS25187 Portia and Scarlett

$739
810829 Clarisse Prom
IN STOCK

810829 Clarisse Prom

Original price $438 Sale price $425.99
20168 Amarra Prom
IN STOCK

20168 Amarra Prom

$319
94024 Amarra Prom
IN STOCK

94024 Amarra Prom

$559
61827 Alyce Paris Prom
IN STOCK

61827 Alyce Paris Prom

$557
PS25201 Portia and Scarlett
IN STOCK

PS25201 Portia and Scarlett

$499
31546 La Femme Prom
IN STOCK

31546 La Femme Prom

$598
32320 La Femme Prom
IN STOCK

32320 La Femme Prom

$478
3590 Colors Dress
IN STOCK

3590 Colors Dress

$416
32321 La Femme Prom
IN STOCK

32321 La Femme Prom

$438
23789 Jovani Prom
IN STOCK

23789 Jovani Prom

88729 Amarra Prom
IN STOCK

88729 Amarra Prom

$550
30746 La Femme Prom
IN STOCK

30746 La Femme Prom

$378
32325 La Femme Prom
IN STOCK

32325 La Femme Prom

$478
88311 Amarra Prom
IN STOCK

88311 Amarra Prom

$450
48033 Morilee Prom
IN STOCK

48033 Morilee Prom

Original price $479 Sale price $425.99
4136 Primavera Couture Prom
IN STOCK

4136 Primavera Couture Prom

$499
06450 Jovani Prom
IN STOCK

06450 Jovani Prom

7418 JASZ Couture
On Sale
IN STOCK

7418 JASZ Couture

Original price $504 Sale price $449.99
61919 Alyce Paris Prom
IN STOCK

61919 Alyce Paris Prom

$328
4321 Primavera Couture Prom
IN STOCK

4321 Primavera Couture Prom

$559
32329 La Femme Prom
IN STOCK

32329 La Femme Prom

$478
3139 Colors Dress
IN STOCK

3139 Colors Dress

$482
3547 Colors Dress
IN STOCK

3547 Colors Dress

$372
3613 Colors Dress
IN STOCK

3613 Colors Dress

$409
25641 La Femme Prom
IN STOCK

25641 La Femme Prom

Original price $350 Sale price $299.99
06109 Jovani Prom
IN STOCK

06109 Jovani Prom

7652 JASZ Couture
On Sale
IN STOCK

7652 JASZ Couture

Original price $548 Sale price $425.99
05752 Jovani Prom
IN STOCK

05752 Jovani Prom

09895 Jovani Prom
IN STOCK

09895 Jovani Prom

61607 Alyce Paris Prom
IN STOCK

61607 Alyce Paris Prom

$428
5013 JASZ Couture
IN STOCK

5013 JASZ Couture

Original price $438 Sale price $374.99
47101 Jovani Prom
IN STOCK

47101 Jovani Prom

30768 La Femme Prom
IN STOCK

30768 La Femme Prom

$498
32337 La Femme Prom
IN STOCK

32337 La Femme Prom

$478
30780 La Femme Prom
IN STOCK

30780 La Femme Prom

$338
PS23282 Portia and Scarlett
IN STOCK

PS23282 Portia and Scarlett

$879
06426 Jovani Prom
IN STOCK

06426 Jovani Prom

61658 Alyce Paris Prom
IN STOCK

61658 Alyce Paris Prom

$368
7704 JASZ Couture
IN STOCK

7704 JASZ Couture

$438
31597 La Femme Prom
IN STOCK

31597 La Femme Prom

$438
37630 Jovani Prom
IN STOCK

37630 Jovani Prom

51579 Jovani Prom
IN STOCK

51579 Jovani Prom

88531 Amarra Prom
IN STOCK

88531 Amarra Prom

$478
5335
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We provide the dress.
You provide the personality.

We want your special occasion shopping experience to be just that - an experience. Our seasoned staff requires an appointment to try on but we encourage you to stop by anytime and browse. To book an appointment, please click the Book Appointment button at the top of this page.

We also require ALL PROM and HOMECOMING SHOPPERS be accompanied by a parent/guardian over 25 years of age because our gowns are very delicate and may require assistance to try on. We have a no food/drink policy in our store for all guests.

XO

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Hours

Monday - Thursday 11-7

Friday & Saturday 10-7

Sunday 11-6

Appointments Required.

$25 Deposit for Prom and Black Tie Appointments

$50 Deposit for Bridesmaid and Mother's Appointments

$100 for Bridal Appointments and Ballgown Appointments

CUSTOMER SERVICE
  • Contact Us
  • King of Prussia Appointment
  • Langhorne Appointment
Information
  • Contact Us
  • F.A.Q.
  • Returns
  • Please No Food or Drinks in the Store! Thank you
My Account
  • My Account
  • Order History
  • Wish List
Locations
Oxford Valley Mall
2300 E Lincoln Hwy
Langhorne, PA 19047

Next to Macy's Upper Level
APPOINTMENT REQUIRED

(215) 702-8586
King Of Prussia Mall
160 N Gulph Rd
King Of Prussia, PA 19406

Next to L.L. Bean Upper Level
APPOINTMENT REQUIRED

(610) 265-PROM
Text Us 484-580-9417

Shopping menu

PROM
  • Alyce Paris
  • Amarra
  • Ashley Lauren
  • Ava Presley
  • Colors Dress
  • Ellie Wilde
  • Faviana
  • Faviana Curves
  • Formals XO Exclusives
  • Jasz Couture
  • Jessica Angel
  • Johnathan Kayne
  • Jovani Prom
  • La Femme - Prom
  • Portia & Scarlett Couture
  • Portia & Scarlett Evening
  • Portia & Scarlett Pageant
  • Portia & Scarlett Prom
  • Primavera
  • Primavera Curvy Plus
  • Scala
  • Sherri Hill
  • Stella Prom
SHERRI HILL COLLECTIONS
  • Sherri Hill Prom
QUINCEANERA &amp; SWEET 16
  • House of Wu Quinceanera
  • Morilee Vizcaya
  • Portia & Scarlett Ballgowns
  • Princesa
HOMECOMING
  • Alyce Semi-Formal
  • Amarra Homecoming
  • Damas de Vizcaya
  • Faviana Cocktail
  • Formals XO Exclusives Short
  • Jasz Homecoming
  • Jessica Angel Cocktail
  • LaFemme Semi-Formal
  • Portia & Scarlett Cocktail
  • Primavera Short
  • Scala Cocktail
  • Sherri Hill Cocktail
  • Sophia Thomas HOCO
BRIDESMAIDS
  • JESSICA ANGEL COLLECTON
MOTHER of the BRIDE/GROOM
  • Montage
SALE
  • Sale Gowns and Dresses
MORE WAYS TO SHOP
  • NEW NEW NEW
  • Ballgowns
  • Bridal Gowns
  • Beaded/Sequin
  • Homecoming
  • Glitter Fabric
  • High-Low
  • Lace
  • Mermaid
  • Prom Gowns
  • Plus Sizes
  • Plain
  • Prints
  • Quinceanera
BOOK APPOINTMENT
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$0$6000

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Select up to 3 sizes

ColorSelect a color
Dress featuresSilhouette, neckline, sleeves and more
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Back Style
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Hemline/Train
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Silhouette
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BE FIRST TO
KNOW

Your destination for designer-inspired prom dresses, homecoming styles, and unforgettable moments.

HOURS

Monday – Thursday
11–7
Friday & Saturday
10–7
Sunday
11–6

Appointments Required.

Appointment Deposits

$25 Deposit for Prom and Black Tie Appointments

$50 Deposit for Bridesmaid and Mother's Appointments

$100 for Bridal Appointments and Ballgown Appointments

CUSTOMER CARE

  • Appointments
  • FAQ
  • Contact Us
  • Returns & Policy

MY ACCOUNT

  • My Account
  • Order History
  • Wish List

LOCATIONS

Oxford Valley Mall
2300 E Lincoln Hwy, Langhorne, PA 19047
Next to Macy's Upper Level
APPOINTMENT REQUIRED
(215) 702-8586
King Of Prussia Mall
160 N Gulph Rd, King Of Prussia, PA 19406
Next to L.L. Bean Upper Level
APPOINTMENT REQUIRED
(610) 265-PROM
formalsxo@aol.com
Text Us 484-580-9417

BOOK YOUR
APPOINTMENT

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Be the first to shop new arrivals and get exclusive access to our latest styles!