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Portia and Scarlett XO306 Fitted Lace Glitter Corset Strapless Gown
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Standard: arrives in 7 to 12 days
Express: arrives in 4 to 6 days
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Text us at 416-536-2956
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Found it for less on a Canadian or US website? We'll match the price and take another $10 off, as long as your colour and size are available.
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Ships from LA, Chicago, New York & Toronto in our pink Marla's box. No duties. Free over $250. Standard 6–9 business days.
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Style it with
Stick-on bra
Invisible support for strapless & backless
$20 CAD
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Double-sided tape
Keeps necklines in place all night
$20 CAD
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Garment bag
Our signature pink bag. Arrives clean and protected
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Description
About the Dress: Portia and Scarlett XO306
The Portia and Scarlett XO306 is a long fitted lace-glitter gown built around a structured corset bodice and a sweetheart neckline. The silhouette is sleek and body-conscious from the sweetheart top all the way through the hips, with a front high slit that lets the skirt move with every step. A subtle sweep hem at the back adds just enough length to give the gown a formal feel on the floor. The XO306 is available in Black, Lt. Blue, Lt. Pink, Red, and Teal.
Fit & Silhouette
Portia and Scarlett XO306 is cut as a true fitted silhouette — it follows the body closely through the bust, waist, and hips with no flare below the knee. The corset bodice has clearly visible vertical boning channels that hold the structure firmly in place, so the gown stays put even without straps. The strapless, sleeveless construction keeps the shoulders and collarbone completely exposed. The front high slit opens movement into the lower skirt, which is where this gown really comes alive — the lace-glitter fabric catches light with every step. Sizing follows standard Portia and Scarlett sizing; if you are between sizes, sizing up and taking in the waist is the easier alteration on a corset bodice.
Fabric & Detail
The fabric on the Portia and Scarlett XO306 is a lace-patterned glitter stretch fabric — the lace supplies the texture and pattern across the surface, while the glitter layer underneath throws light in every direction. The combination reads as richly textured in person rather than flat sequin. The boning is sewn into the interior of the corset bodice and is visible as vertical channels running from the sweetheart edge down toward the waist. The skirt has enough stretch to accommodate the movement through the slit without pulling or distorting the lace pattern.
Key Features
- Long fitted lace-glitter silhouette
- Pronounced sweetheart neckline, strapless and sleeveless
- Structured corset bodice with visible vertical boning channels
- Front high slit for ease of movement
- Sweep train at the hemline
- Crisscross lace-up back closure for an adjustable fit
- Available in Black, Lt. Blue, Lt. Pink, Red, and Teal
Style & Occasion
The Portia and Scarlett XO306 is built for prom, formal dances, evening galas, and big formal events where a sleek, high-impact gown is the goal. The lace-glitter fabric moves well under ballroom and venue lighting, and the front slit gives the skirt a fluid, dramatic quality as you walk. For accessories, keep the neckline clear — this sweetheart top does the work on its own. A simple metallic heel or strappy sandal in a matching or contrasting color lets the gown stay the focus. Hair up or swept to one side shows off the crisscross lace-up back, which is a strong detail on its own. The XO306 is available in Black, Lt. Blue, Lt. Pink, Red, and Teal, so it works equally well for a classic look or a bold color statement.
Size & fit
- Fitted. Bust, waist and hips all matter. Go by your largest measurement.
- 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 -
Found this dress cheaper? Send us the link and we'll match the price.
Ask a stylist
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
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Portia and Scarlett XO306 Fitted Lace Glitter Corset Strapless Gown
Sale price $1,149 CAD
Need help?
Frequently Asked Questions
Because the XO306 has a strapless sweetheart neckline and an open lace-glitter surface across the entire gown, the goal with accessories is to complement without competing. The neckline is already a strong focal point, so the safest move is to keep the collarbone clear — skip a statement necklace and go straight to earrings instead. Long drop earrings in gold, silver, or a crystal that picks up the glitter in the fabric work beautifully. A small ear cuff or simple studs are equally good if you prefer a cleaner look.
For shoes, a strappy metallic sandal or a pointed-toe heel is the go-to pairing. Because the gown has a front high slit, the shoe gets real visibility every time you take a step, so it is worth investing in a heel you love. A nude-tone heel (what you might also call champagne beige) elongates the leg through the slit. A black heel against the lace is a classic, and a color-matched heel — red with red, teal with teal — makes the whole look feel intentional. Platform heels work on this gown if you prefer the height; just make sure the hem is hemmed to your platform height before the event.
For a bag, a small satin or metallic minaudière is the right proportion. A clutch that is too large breaks the sleek line of a fitted gown. Choose a metal-frame box clutch or a simple envelope style.
Hair is worth thinking about for this dress specifically because the crisscross lace-up back is a genuine design feature. If you wear your hair up — a bun, a chignon, or a high ponytail — the back detail is fully visible, which is a strong look from across the room. A half-up style also works. Wearing the hair fully down does cover the back closure, which is not wrong, but you lose a detail that is worth showing.
If you want to add a wrap or shawl for an outdoor cocktail hour before the main event, choose something lightweight — a silk or chiffon wrap in a neutral tone that you can remove easily. Heavy wraps change the silhouette of a fitted gown in a way that does not serve it. Overall, the XO306 is best served by accessories that stay refined and do not compete with the movement and texture the lace-glitter fabric already provides.
The XO306 works across a range of body types largely because of how the corset bodice functions. A corset with vertical boning channels does two things simultaneously: it supports the bust without straps, and it cinches and defines the waist. The sweetheart neckline draws the eye upward to the collarbone and shoulders, which is a universally flattering focal point. The fitted silhouette through the hips follows the body's natural shape rather than adding volume, so the overall effect is long and lean from the front.
For customers with a fuller bust, the structured boning is a significant advantage. Unlike a strapless gown that relies solely on elastic or boning near the top edge, a full corset bodice with multiple boning channels distributes support across the entire waist and ribcage, not just at the bust line. This means the dress stays in place more securely. The crisscross lace-up back also allows the fit to be adjusted across the back and ribs independently of the front — if you are between sizes, lacing the back a little tighter or looser gives you real flexibility.
For a pear-shaped or hip-forward silhouette, the high slit is useful because it breaks up the vertical line of the skirt and adds movement rather than drawing attention to width. The lace-glitter fabric has texture throughout, which distributes the eye across the surface rather than concentrating it at any one point.
For a straighter or athletic build, the corset construction creates the waist definition that gives the gown its shape. The sweetheart neckline also adds curves at the top of the dress, which balances the fitted skirt below.
For a petite frame, the fitted cut and long length can elongate the silhouette significantly, especially with a heel. The high slit allows movement without bunching at the hem, which is often an issue with petite fittings on floor-length gowns. We recommend getting the hem adjusted to your heel height before the event.
If you have specific fit questions or want to talk through sizing for your measurements, our team is happy to help. Text or WhatsApp us at +1 416-536-2956 (CA) or +1 213-868-3131 (US) and we can guide you through the decision before you order.
Orders for the Portia and Scarlett XO306 typically ship within 7 to 12 business days. Marlas Fashions ships from warehouses in Los Angeles and New York for US customers, and from Toronto for Canadian customers. Canadian orders ship with no duties — the price you see is the price you pay at the door. US customers also pay no import duties on domestic shipments.
International shipping is available worldwide with full tracking on every order. International delivery times vary by destination but are quoted at checkout. If you have a specific event date and are concerned about timing, express and rush shipping options are available — contact us before placing your order and we can confirm what is realistic for your date. Every order ships with a tracking number so you can follow the package from dispatch to delivery. For time-sensitive orders, reaching out early is always the best move.
Marlas Fashions accepts returns on the Portia and Scarlett XO306. You can return the dress for store credit that never expires, exchange it for a different size or color, or return it for a refund with a 30% restocking fee deducted from the original amount. The store credit option is the most flexible because it gives you full value with no deduction and no expiry — you can put it toward the XO306 in a different color or any other dress on the site at any time.
To be eligible for a return or exchange, the dress must be unworn, unaltered, and in its original condition with tags attached. Because the XO306 is a formal gown, we strongly recommend trying it on as soon as it arrives so you have enough time to exchange for a different size if needed. If you have questions about the condition requirements before sending something back, our team can walk you through the process directly.
The main thing that separates the XO306 from a standard fitted lace gown is the fabric combination. Most lace prom gowns use lace as a surface overlay on a plain base — the XO306 uses a lace-patterned glitter stretch fabric, which means the glitter is woven into the same layer as the lace pattern. The result is that the texture and the shimmer are fully integrated rather than layered, so the dress catches light differently depending on the angle and the direction you move.
The front high slit is also a deliberate design choice that adds movement to what is otherwise a close-fitting silhouette. Fitted gowns without a slit can feel restrictive to walk in — the XO306 solves that with a slit that allows a full stride while keeping the narrow line intact from the front. The sweep train at the back hem adds formality without significant length management.
The corset bodice with visible boning is another differentiator. Many strapless gowns use light boning near the bust only. The XO306 has a full vertical boning structure through the bodice, which provides genuine support and creates a more sculpted waist shape. Combined with the crisscross lace-up back, it gives the wearer a level of fit adjustment that most off-the-rack gowns do not offer.
The crisscross lace-up back on the Portia and Scarlett XO306 uses a ribbon or cord that laces through a series of loops or eyelets up the back of the corset bodice. The pattern crosses back and forth — hence crisscross — rather than running straight up in a single column. This crossing pattern distributes the tension evenly across the back panel, which is part of why it is better at shaping the waist than a simple zipper.
You can adjust it yourself, but it is easier with a second person. Having someone help you tighten and tie the lacing while you stand straight in the dress gives a cleaner, more even result than trying to reach behind yourself. Once tied, the bow or knot at the top or bottom holds the tension in place throughout the night. If you order the dress and the fit is slightly too large through the back, lacing it tighter is a genuine size-down — within reason, roughly a size. If the dress is too small through the back, looser lacing can open up a little room, though at that point a size up is the better solution.
Yes — the XO306 works well in a coordinated group context because it is available in five colors: Black, Lt. Blue, Lt. Pink, Red, and Teal. A prom group or court can coordinate by choosing different colorways of the same style, which creates a cohesive look without everyone wearing an identical gown. The silhouette and fabric texture read as consistent across all colorways, so the group looks pulled together even when the colors differ.
For a damas or court setting, the fitted lace-glitter silhouette photographs well under stage or event lighting, which is a practical consideration for formal presentations. The consistent fabric across all colors means that group photos have a unified texture even with varied hues. If you are coordinating a large group and need to confirm availability across multiple colors and sizes, reaching out to us in advance is the best approach so we can confirm stock before everyone orders.
The Portia and Scarlett XO306 runs in standard US dress sizing. For a fitted corset gown, the three measurements that matter most are bust, waist, and hips. Take the bust measurement across the fullest part of the chest, the waist at the narrowest point, and the hips at the fullest point — typically about seven to nine inches below the waist. Compare all three to the size chart rather than going by a single measurement, because a fitted gown needs to fit the widest point without pulling.
For the XO306 specifically, because the corset lace-up back provides some adjustment room, many customers find that when they are between sizes, sizing to the hip measurement and lacing the back for the waist works well. The most common alteration on a corset gown is hemming to heel height, which is straightforward for any tailor. If you are unsure which size to order after measuring, our team can help you decide based on your exact numbers before you place the order.