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Sizing Guide
US Size
Bust(in)
Waist(in)
Hips(in)
0
31.5
24.5
34.75
2
32.5
25.5
35.75
4
33.5
26.5
36.75
6
34.5
27.5
37.75
8
35.5
28.5
38.75
10
36.5
29.5
39.75
12
38.0
31.0
41.25
14
39.5
32.5
42.75
16
41.0
34.0
44.25
16W
43.0
36.25
45.5
18W
45.0
38.5
47.5
20W
47.0
40.75
49.5
22W
49.0
43.0
51.5
24W
51.0
45.25
53.5
26W
53.0
47.5
55.5
US Size
Bust(cm)
Waist(cm)
Hips(cm)
0
80
62
88
2
83
65
91
4
85
67
93
6
88
70
96
8
90
72
98
10
93
75
101
12
97
79
105
14
100
83
109
16
104
86
112
16W
109
92
116
18W
114
98
121
20W
119
104
126
22W
124
109
131
24W
130
115
136
26W
135
121
141
Delivery Time & Shipping
♦ Total Delivery Time = Production Time + Shipping Time
Production time: 3-5 Business Days( Due to the peak season, there are more orders and the processing time is longer,you can place your order in advance.)
Production time depends on the complexity of the dress's craftsmanship.
Shipping Time:
Estimated Arrival Standard Shipping: 6-8 business Days (8‑10 calendar‑days).
Expedited Shipping Arrival Time：3-5 business Days ( 5‑7calendar‑days).
♦ Total Delivery Time = Production Time + Shipping Time.
If there are major holidays, the delivery time of all orders may be delayed. If time is urgent, you can contact us.
Return Policy
Standard‑size items may be returned within 30 days after receipt of goods. All returnable items must be unwashed, free of stains, kept in original condition, and with clothing tags intact
Free Shipping Eligibility
US: 🚚 Free shipping across most U.S. states. Hawaii, Alaska and Puerto Rico are excluded. order $49+.
Strapless Sweetheart Satin Mermaid Prom Dress with Keyhole Cutouts, Crystal Accents and Lace-Up Back
Glamorous from the first look to the last dance. A strapless sweetheart neckline with softly pleated cups sets the stage, two keyhole cutouts are linked by three sparkling crystal accents down the center front, and the form-fitting satin mermaid silhouette follows your curves to the floor with a high slit and a sweeping train. A corset-style lace-up back lets you adjust the fit, the gown is lined for comfort, and it comes in 3 colors and sizes US 2 to US 16. Browse more styles in our prom dresses collection.
Product Silhouette
A floor-length, form-fitting mermaid silhouette. The pleated sweetheart bodice shapes the bust and waist, the ruched midriff wraps the waist, the gown hugs the hips and thighs, and the skirt flares from the knees into a flowing hem with a high slit and a sweeping train. Want more options? See our mermaid evening dresses.
Material
High-quality satin with a smooth surface, a soft sheen and a flattering drape. Fine pleating shapes the bodice, crystal embellishments add sparkle, and the lining keeps the gown comfortable and smooth against the skin.
Turn inside out, lace up the back loosely and use a mesh laundry bag to protect the crystals
Do not bleach
Hang to dry; do not tumble dry
Steam on the reverse side if needed, keeping heat away from the crystals
Available Colors
Navy Blue – deep, rich and timeless; the crystals sparkle against the dark satin
Dusty Rose – a soft, warm champagne-blush with a romantic glow
Sage – a soft, muted green with a calm, earthy elegance that photographs beautifully
Screen display differences may cause slight shade variations between photos and the garment you receive.
Details We Love
Strapless sweetheart neckline with softly pleated cups
Two keyhole cutouts, one at the bust and one at the waist
Three crystal accents stepping down the center front
Ruched, wrap-style midriff that defines the waist
Form-fitting satin mermaid silhouette that flares from the knees
High slit for easy movement
Sweeping train for a graceful finish
Corset-style lace-up back with a small keyhole detail and a zipper below
Lined for comfort
Machine washable for easy care
Available in US2-US16; see our size chart to find your fit
Why Choose This Dress?
A shape made for the spotlight. The sweetheart bodice, keyhole cutouts, mermaid line, high slit and sweeping train create a dramatic, red-carpet look.
A fit you can adjust. The corset-style lace-up back lets you tighten or loosen the bodice for a snug, comfortable fit.
Sparkle without the fuss. Three crystal accents add shine while the smooth satin and clean lines keep the design elegant and not over the top.
Comfortable to wear. The lining keeps the satin smooth, and the high slit gives you room to walk, dance and take the stairs.
Easy to care for. Machine washable, so it is ready for the next event.
One gown, many events. It works as a prom dress, a bridesmaid dress, a wedding guest outfit or a gala gown.
A great value. Mermaid glamour, keyhole cutouts, crystals and a lace-up back at a friendly price.
Size and Fit
Available in sizes US2-US16. The mermaid cut is fitted through the bust, waist, hips and thighs, and the lace-up back lets you fine-tune the fit through the bodice. Please compare your bust, waist and hip measurements with our size chart before ordering. If you are between sizes, choose the size that fits your largest measurement.
Styling Tip
A strapless neckline with keyhole cutouts shows off your shoulders and collarbones, so let them shine. Wear your hair in soft waves over one shoulder or in a sleek updo, add crystal drop earrings, and skip the necklace. Strappy heels in silver, nude or champagne and a small metallic clutch keep the long line polished.
AI-generated styling concepts across sizes US 2 to 16. These are illustrative, not customer photos or verified fit photos. Check the size chart for your measurements.
US 2 · Navy Blue · Petite FitUS 4 · Dusty Rose · Slim FitUS 6 · Sage · Modern FitUS 8 · Navy Blue · Classic FitUS 10 · Dusty Rose · Curvy FitUS 12 · Sage · Full FitUS 14 · Navy Blue · Curvy FitUS 16 · Dusty Rose · Full Curvy Fit
Frequently Asked Questions
How long will this mermaid prom dress ship to the United States?
Production takes 3-5 business days, and may take longer during peak season, so order early for your event. Standard shipping takes 6-8 business days (about 8-10 calendar days), and expedited shipping takes 3-5 business days (about 5-7 calendar days). Holidays may lead to delivery delays.
Is free shipping offered for this prom dress in the USA?
Free shipping applies for most U.S. states. Hawaii, Alaska and Puerto Rico are excluded from the free-shipping offer. See our shipping policy for details.
Can I return this satin mermaid gown?
Standard-size items can be returned within 30 days after you receive your package. Items must be unwashed, free of stains, kept in original condition and have the clothing tags intact. See our return and refund policy or visit our FAQ page for more help.
What sizes does this dress come in, and how does it fit?
This dress is available in US women sizes US 2-US 16. The mermaid cut is fitted, and the lace-up back lets you adjust the bodice. We strongly recommend measuring your bust, waist and hips in inches and comparing them with our size chart, rather than relying only on your everyday casual-clothing size.
Is this dress good for prom, weddings and formal events?
Yes. The sweetheart neckline, keyhole cutouts, crystals and mermaid shape are made for prom, and the dress also works for wedding parties, bridesmaids, galas, pageants, cocktail parties, wedding guest attire and other formal occasions. Explore more options in our prom dresses.
Does this dress have a slit and a train?
Yes. The skirt has a high slit for easy walking and dancing, and the floor-length hem ends in a sweeping train for a graceful finish.
How does the back close, and can I adjust the fit?
The back has a corset-style crisscross lace-up section with a small keyhole detail, and a zipper below it. Tighten or loosen the laces to adjust the fit through the bodice, then tie them into a neat bow.
Does this dress have cutouts?
Yes. The front has two keyhole cutouts, one at the bust and one at the waist, linked by crystal accents, and the back has a small keyhole detail below the laces.
Does this dress have a lining?
Yes. The dress is lined, so it feels smooth against the skin and keeps its clean line.
Is this dress machine washable?
Yes. Machine wash cold on a gentle cycle, turning the dress inside out, lacing the back loosely and using a mesh laundry bag to protect the crystals. Do not bleach, hang to dry and do not tumble dry. Steam on the reverse side if needed, keeping heat away from the crystals.
What colors does this dress come in?
It comes in 3 colors: Navy Blue, Dusty Rose and Sage. Screen display differences may cause slight shade variations between photos and the garment you receive.
What shoes and accessories pair well with this dress?
Strappy heels in silver, nude or champagne, crystal drop earrings and a small metallic clutch suit the strapless neckline. Wear your hair swept to one side or up so your shoulders and the lace-up back stay in view.
