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Ellie Wilde EW37204 Sequin Mermaid Gown
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Standard: arrives in 7 to 12 days
Express: arrives in 4 to 6 days
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Stick-on bra
Invisible support for strapless & backless
$20 CAD
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Double-sided tape
Keeps necklines in place all night
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Description
About the Dress: Ellie Wilde EW37204
The Ellie Wilde EW37204 is a long sequin mermaid gown built for prom night. It features a sweetheart neckline with beaded floral appliqués along the edge, a sheer illusion mesh bodice panel at the center front, and a fully open back that makes this gown unmistakably bold. Thin spaghetti straps cross the upper back for support. The skirt hugs tightly through the hips and thighs, then flares into a dramatic sweep train — a true mermaid silhouette with no slit. Ellie Wilde EW37204 is available in five photographed colors: Dusk, Emerald, Plum, Red, and Royal Blue.
Fit & Silhouette
EW37204 fits close to the body from the sweetheart neckline all the way through the hips and thighs. The mermaid silhouette means it is tight through the mid-section and only opens up below the knees, where it flares into a full sweep train. The structured boning inside the bodice keeps the fit firm and supportive without a separate strapless bra. Because the skirt is fitted through the thighs, walking and movement are more of a sway than a stride — this is a standing-and-turning gown as much as a dancing one. We recommend ordering to your largest measurement (bust, waist, or hips) and budgeting for any targeted tailoring you need. Ellie Wilde EW37204 runs true to size for most customers.
Fabric & Detail
The entire skirt of EW37204 is covered in a sequin print on a mesh base fabric, giving the gown its all-over sparkle and the visual weight that a mermaid silhouette demands. The bodice uses a sheer mesh panel at the center front, creating a genuine illusion panel that shows skin through the fabric rather than through a cut-out. Boning channels run through the bodice and are clearly visible through the mesh, adding structure. Beaded floral appliqués trace the top edge of the sweetheart neckline, adding a sculptural, dimensional detail above the sequin field. The back is fully open to the waist — the whole back is bare, with only the thin straps crossing the upper back.
Key Features
- Long mermaid silhouette — tight through hips and thighs, dramatic flare below the knee
- Sweetheart neckline with beaded floral appliqués
- Sheer illusion mesh center-front bodice panel
- Fully open back to the waist with thin spaghetti strap detail
- Structured boning through the bodice for built-in support
- All-over sequin skirt on a mesh base fabric
- Sweep train
- Available in Dusk, Emerald, Plum, Red, and Royal Blue
Style & Occasion
Ellie Wilde EW37204 is designed for prom. The full sequin skirt, open back, and sweep train put it squarely in standout-prom-gown territory. It photographs exceptionally well under venue lighting — the sequin surface catches every spotlight. For shoes, a strappy heeled sandal keeps the look open and lets the train move cleanly; a block heel works well if you want more stability on the dance floor. Keep jewelry minimal — the sequin and the beaded neckline do the work. A simple ear cuff or small stud is enough. For color, Dusk reads as a dusty mauve-lavender in person, Plum is a deep berry-purple, Royal Blue is bright and saturated, Red is a classic true red, and Emerald is a rich jewel-tone green. All five colors carry the sequin equally well. The gown's open back means undergarment planning matters — stick to a low-back adhesive bra or fashion tape at the back.
Size & fit
- Fitted (mermaid, corset). Bust, waist and hips all matter. Go by your largest measurement.
- Length: Long
- Neckline: Sweetheart
- Details: Beaded, Floral Appliques, Open Back, Train
- Between sizes? Text a stylist and we'll help you choose.
Shipping
- Arrives in 7–12 business days, or 4–6 with Express (+$35).
- Free shipping over $250 to Canada and the USA.
- 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.
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Free standard shipping on orders over $250 to the US and Canada. Under $250, shipping is shown at checkout.
Shipping details -
US orders ship from our warehouses in Los Angeles, Chicago and New York. Canadian orders ship from Toronto. No duties to pay at the door.
Shipping details -
Exchange, store credit or refund. Dresses tagged Final sale can't be returned.
Return policy -
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Ellie Wilde EW37204 Sequin Mermaid Gown with Illusion Bodice & Train
Sale price $799 CAD
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Frequently Asked Questions
The bodice of EW37204 has structured boning built in, which provides real support through the front. You do not need a separate bra for the front — the boning holds the bust firmly in place. The sweetheart neckline sits securely on the boning structure.
The challenge is the back. Because the entire back is open to the waist, a traditional bra or strapless bra is not an option. Most customers wearing this gown use one of two solutions: a low-back adhesive bra (stick-on cups that adhere directly to the skin) or fashion/garment tape applied at the neckline edge to keep the front panel sitting exactly where you want it. If you have a larger bust, an adhesive bra with a strong hold rating is worth investing in — it will give you confidence on the dance floor.
For the lower body, seamless underwear in a color close to your skin tone works best. The sequin skirt is opaque, so there is no sheerness concern in the skirt itself. The illusion front bodice panel is sheer, so anything worn under that area will be visible — skin is the intended look.
Practice standing, sitting, and dancing in your chosen undergarment solution before prom night to make sure everything stays in place the way you need it to.
Ellie Wilde EW37204 runs true to size for most customers, meaning the size chart measurements line up closely with how the dress actually fits. That said, because this is a fitted mermaid gown — tight through the bust, waist, hips, and thighs all the way to the knee — you have very little room to go up or down once the gown is on. The fit has to be right through every zone simultaneously, which is why sizing to your measurements rather than your usual clothing size matters more here than it would for an a-line or a ballgown.
To find your size: measure your bust at the fullest point, your natural waist, and your hips at the widest point, then compare every measurement against the Ellie Wilde size chart. Order to whichever measurement puts you in the larger size. For example, if your bust fits a 4 but your hips fit a 6, order the 6. A local seamstress can take in the bust for a modest cost, but letting out the hips of a mermaid gown that is already cut to the maximum is much harder — sometimes impossible — without altering the sequin panels.
Customers who are between sizes and have curves through the hips and thighs consistently say they are glad they sized up. Customers who sized down report that the skirt feels restrictive walking and that sitting is uncomfortable for extended periods.
The bodice has structured boning built in, which means it provides real hold without a separate bra. The boning also means the bodice is not forgiving of too much extra room — a bodice that is too large will gap at the front mesh panel, which will be visible. So while you size up for hips, you do not want to go excessively large in the bust if your bust measurement falls cleanly in a smaller size. When in doubt, size to the hips and adjust the bust through tailoring.
For height: the gown is cut for approximately 5'7" to 5'9" with heels. If you are shorter, you will almost certainly need a hem. If you are taller, this gown will likely hit at the right length with a 3" to 4" heel. Factor alterations into your timeline and budget — allow at least two to three weeks with your seamstress before your event. Our team is always happy to talk through sizing specifics with you before you order.
Ellie Wilde EW37204 is built for prom. Every design decision in this gown — the full open back, the all-over sequin skirt, the sweep train, the sheer illusion bodice panel, the beaded neckline — points to a prom night entrance. This is not a versatile dress that quietly fits into multiple event categories. It is a statement gown that is made to be worn once, loudly, in the best possible way.
The open back rules out several events where this gown might otherwise work. A full open back to the waist, combined with the sheer illusion front bodice panel and a body-hugging mermaid silhouette, makes this gown overtly sexy by design. That said, for wedding guest occasions and black-tie events, the open back and fitted silhouette suit evening receptions best, and a wrap or stole can offer a polished, covered look where preferred. It is also not a Mother of the Bride choice for the same reason.
Where EW37204 absolutely shines: prom, prom after-parties at venues with a dress code, and formal dance events that specifically call for full-length formal gowns with no restrictions on back coverage. If your school or venue has a dress code that restricts open backs or sheer panels, check the code before ordering — this gown will not pass a conservative dress code review.
For prom specifically, EW37204 is an excellent choice for both grand march and dancing portions of the evening. The sweep train photographs beautifully for group photos and posed shots. On the dance floor, the mermaid cut through the thighs means you will be doing smaller, more fluid movements rather than big leg swings — most customers find they adapt quickly and love how the gown moves during slower dances.
All five color options — Dusk, Emerald, Plum, Red, and Royal Blue — photograph exceptionally well under typical prom venue lighting (uplighting, spotlights, colored wash lighting). Sequin fabric is one of the best performers in those conditions because it reflects and amplifies whatever light hits it. If your venue has colored lighting, lean toward Dusk or Emerald for the most striking effect under warm light, or Royal Blue and Plum for cool-toned lighting setups. Red holds up under any lighting.
Bottom line: if your event is prom and the dress code allows for a glamorous open-back gown, EW37204 is exactly what it was designed for.
Most customers need at least a hem on this gown. The dress is cut for a taller frame (roughly 5'7" to 5'9" in heels), and the sweep train adds additional length beyond the hemline. If you are under 5'6" even in heels, plan for a hem.
Hemming a sequin mermaid gown is more involved than hemming a simple chiffon dress. The sequin fabric and the mermaid silhouette both add complexity — the hem must maintain the flare shape while cutting through the sequin layer cleanly. Not every seamstress is comfortable with sequin work. When you look for a tailor, ask specifically whether they have experience with sequin or heavily embellished fabrics before booking. A skilled seamstress can do this hem beautifully; an inexperienced one can damage the sequin edge.
For the bodice, taking in or letting out through the waist or hips on a mermaid gown requires opening seams that run through the fitted sequin skirt — this is more labor-intensive than bodice work on a ballgown. Budget accordingly and build in at least two to three fittings before your event. Order the gown as soon as you know you want it, to leave yourself enough time for alterations without rushing.
EW37204 is genuinely wearable for a full prom night, but a mermaid silhouette does change how you move compared to an a-line or ballgown. The skirt is tight through the thighs to the knee, which means your stride is naturally shorter. You will not be doing big kicks or wide-leg dance moves, but swaying, turning, and close dancing all work naturally with the silhouette.
The boning in the bodice means you are well-supported throughout the night — it does not dig or compress the way an underwire sometimes does, because it is stitched into the structured bodice rather than resting against bare skin. Most customers find the bodice comfortable for the full evening.
The sweep train is the main thing to be aware of on the dance floor. You will want to be conscious of other dancers stepping on the train behind you. Some customers tuck the train slightly or hold it while dancing in close quarters. In open floor space, the train moves with you and looks stunning.
Wear your heels around the house before prom night. Because the gown fits closely through the legs, the height and stability of your shoe matters more than it does in a flowing skirt — you rely on the heel more for balance when your stride is shortened by the skirt fit.
All five colorways of EW37204 — Dusk, Emerald, Plum, Red, and Royal Blue — are photographed on the product page, so what you see is a strong representation of each color. That said, sequin fabric has a natural variation depending on the light source: in bright natural light the sequins read very clean and saturated; under warm venue lighting they pick up warm tones; under colored lighting they shift noticeably toward the ambient color.
Dusk is a dusty mauve-lavender with pink and grey undertones — it photographs cooler than it looks in warm light, where it reads warmer and slightly rose-tinted. Plum is a deep, saturated berry-purple. Emerald is a rich jewel-tone green. Royal Blue is bright and saturated, a classic electric blue. Red is a true, balanced red — not orange-red, not blue-red.
For skin tone: cool undertones (pink, blue, or neutral) tend to look best in Plum, Royal Blue, and Dusk. Warm undertones (yellow or golden) tend to favor Emerald and Red. That said, sequin reflects so much light that hard-and-fast skin tone rules matter less here than they do for matte fabrics — try against your skin in-store if you can, or look at the color in the same lighting you will be photographed in.
If your prom has a theme or venue color scheme, Dusk and Emerald tend to complement most venue palettes without clashing.
Sequin gowns need gentle handling both during wear and in storage. After the event, hang the gown on a padded hanger rather than folding it — folding a sequin gown can crease the base fabric and displace sequins at the fold lines. Keep it in a breathable garment bag, not a plastic dry-cleaning bag, which traps moisture.
For cleaning: do not machine wash EW37204. Dry cleaning by a specialist who has worked with sequin or beaded gowns is the safest option. If you have a small spot or stain, blot gently with a damp cloth — do not rub, as rubbing can pull sequins loose or snag the mesh base.
For travel: roll loosely in acid-free tissue or lay flat in a hard-sided garment bag if you are flying. Carry-on is safer than checked luggage for a gown like this. If the gown wrinkles during travel, hang it in a steamy bathroom for 20 to 30 minutes — use a steamer on a low setting held well away from the sequin surface if wrinkles persist. Never press an iron directly against sequin fabric. Contact us directly by texting us at +1 416-536-2956 or messaging us on WhatsApp at +1 213-868-3131 - our luxury dress concierge is ready to help.
For shoes: a strappy heeled sandal is the most popular pairing with this gown. It keeps the leg line open and the look cohesive with the exposed back and the sweetheart neckline. Metallic strappy sandals in gold, silver, or clear work in all five colorways. If you want more stability on the dance floor, a block heel in the same metallic tones gives you more surface area underfoot without losing the dressed-up look. Avoid a closed-toe pump — it reads too conservative for the gown's personality. Heel height of 3" to 4" is ideal for proportion with the mermaid skirt.
For jewelry: keep it minimal. The beaded floral appliqués at the neckline, the illusion bodice panel, and the all-over sequin skirt are all doing significant visual work — you do not need to stack jewelry on top of that. A simple small stud earring or a thin ear cuff is enough. If you want to wear a necklace, go very fine and delicate; a statement necklace will compete with the beaded neckline. A thin bracelet or bangle works well for the wrist. Avoid heavy chandelier earrings — the open back and low neckline already frame the face and shoulders beautifully on their own.