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Mac Duggal 21104 Off-Shoulder Mermaid Gown

Sale price $ 9,581 Regular price$ 11,264
Buy now, pay later.
4.7 · 3,900+ Google reviews
Color:Navy Blue
Size:
Color: Navy Blue
Sizes:
Arrives in 7–12 business days
Add to Cart
Description

About the Dress: Mac Duggal 21104

Mac Duggal 21104 is a floor-length mermaid gown crafted in a smooth matte jersey fabric. The off-shoulder neckline reveals a sweetheart-shaped bodice edge and frames the shoulders with a band of oversized 3D fabric rosettes — the defining detail of this style. The silhouette hugs the body through the bust, waist, and hips before flaring out below the knee into a dramatic mermaid flare. The back is fully open from the off-shoulder line down to the mid-back, giving the gown a sleek, refined look from every angle. Mac Duggal 21104 is photographed in Navy Blue.

Fit & Silhouette

Mac Duggal 21104 follows a true mermaid silhouette. It fits close to the body through the bust, waist, and hips, then flares into a full skirt below the knee. The jersey fabric has a firm, smooth stretch that holds its shape and provides consistent structure without boning. The off-shoulder rosette band keeps the upper body framed and defined. This gown is best ordered in your true size — it is fitted throughout and is not designed to size down. If you are between sizes, size up for a more comfortable fit through the hips.

Fabric & Detail

The body of Mac Duggal 21104 is made from a smooth matte jersey, consistent with the scuba-knit fabrication Mac Duggal uses across its evening collection. The fabric lies flat with a clean finish and no sheen, keeping the overall look minimal and refined. The standout detail is the off-shoulder band of large 3D fabric rosettes, which wraps across the chest and upper arms. These rosettes are dimensional and sculptural — they add presence without relying on sequins or beading. The rest of the gown is completely clean: no embellishment on the skirt or bodice below the rosette band.

Key Features

  • Floor-length mermaid silhouette with flare below the knee
  • Off-shoulder sweetheart neckline
  • 3D fabric rosette band across the off-shoulder line
  • Smooth matte jersey construction
  • Fully open back from shoulder to mid-back
  • Sleeveless — rosette band drapes the upper arm
  • No boning, no sequin, no beading
  • Available in Navy Blue

Style & Occasion

Mac Duggal 21104 works for formal events where a clean, sculptural look stands out. It is a strong choice for prom, black-tie galas, and formal evening events. The refined silhouette and elegant rosette detail also make it a natural fit for mother-of-the-bride styling at formal weddings. The open back adds drama while the matte jersey keeps the overall aesthetic minimal and polished. Style it with a simple strappy heel — the rosette band draws enough attention that the rest of the look stays clean. Keep jewelry minimal: a slim bracelet or small earrings are enough. A low updo or sleek ponytail works well with the off-shoulder neckline and open back. Mac Duggal 21104 is available in Navy Blue.

Size & fit
  • Fitted (mermaid). Bust, waist and hips all matter. Go by your largest measurement.
  • Length: Long
  • Neckline: Off-Shoulder, Sweetheart
  • Details: Floral Appliques, Open Back
  • Between sizes? Text a stylist and we'll help you choose.
Shipping
  • Arrives in 7–12 business days.
  • Ships worldwide from Toronto with tracking.
  • Text updates as your order ships.
Full shipping details

Your Dress — Delivered in Days, Not Weeks.

We know timing matters — especially for prom, weddings, quinceañeras, and special events.

  • Receive your dress within 7–12 business days, depending on designer availability.
  • You’ll receive text updates as your order moves from processing to shipping.
  • Once shipped, delivery typically takes 2–5 business days within North America.

Need it sooner?

We offer rush options where you can receive your dress within 4–6 business days. Text us at +1 416-536-2956 before ordering and we’ll confirm the fastest possible delivery date.

We are an authorized retailer of top designers, which means your dress ships brand new and directly from the designer or our showroom — never used, never rented.

Have an event date? Add it in your order notes so we can prioritize accordingly.

We proudly ship across Canada, the United States, and Internationally, with in-store pickup available at our Toronto showroom.

Returns
  • Tell us within 5 days of delivery.
  • 100% store credit, a one-time exchange, or a refund (30% restocking fee).
  • Online purchases only; in-store purchases are final.
Full return policy

WE ACCEPT RETURNS!

For Online Purchases Only. All in-store purchases are FINAL.

We hope you LOVE your dress — but if you're not completely satisfied with your online purchase, you may request:

  • 100% Store Credit (no expiration).
  • A one-time exchange, OR
  • A return with a 30% restocking fee, OR

You must notify us of a return within 5 days of delivery (including weekends and holidays — we are open 7 days a week).

We have no control and accept no responsibility for the sizing selected. Please carefully review the size chart before ordering. If you need assistance with sizing, we’re happy to help — text us at +1 416-536-2956.

ORDER CHANGES & CANCELLATIONS

Once your order is placed, you have 5 hours to request a change to the color, size, or style.

If an item becomes unavailable, we will offer alternatives or provide the option of a full refund for that item.

Please see our Returns & Exchanges page for full details.

  • Free shippingover $250, Canada & USA
  • Returns & exchangesstore credit, exchange or refund
  • Price matchfound it cheaper? We match
  • Secure checkoutShop Pay, PayPal, Sezzle, Affirm

Why buy from Marlas

Authorized retailerEvery dress authentic, direct from the designer
Toronto flagship10,000 sq ft showroom, 100,000+ clients styled
15,700+ online ordersShipped to 59 countries
Real stylistsText, WhatsApp or chat. Replies in about 10 min
Mac Duggal 21104 navy front view off-shoulder mermaid gown in matte jersey with 3D floral rosettes formal prom gown
Mac Duggal 21104 Off-Shoulder Mermaid Gown with Floral Rosettes & Floral Appliques Sale price $ 9,581 Regular price$ 11,264
Size :
0
Color :
Navy Blue
Size :
0
Color :
Navy Blue
Add To Cart

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