Royal Blue Mermaid Prom Dress Sweetheart with Detachable Overskirt Train

Command every room in this ultra-luxurious royal blue satin mermaid prom dress. The structured sweetheart bodice features dramatic pleated cups and wide shoulder straps for a bold, editorial look, while the fitted mermaid skirt hugs every curve. The showstopping detachable overskirt train adds sweeping, theatrical drama — wear it full-length for grand entrances, then detach for the dance floor. Two looks in one gown.

• Silhouette: Mermaid with Detachable Overskirt
• Neckline: Sweetheart
• Straps: Wide Shoulder Straps
• Bodice Detail: Structured Pleated Cups, Ruched Bodice
• Fabric: Stretch Satin
• Length: Floor-Length Mermaid + Detachable Extended Train
• Train: Removable Overskirt / Cathedral-Style Train
• Built-In Bra: Yes
• Boning: Yes
• Available Colors: 70+ colors available — leave your color request in the order notes
• Custom Sizing: Available — provide bust, waist, hips & barefoot height in order remarks

Why You'll Love It

This dress gives you two iconic looks in a single gown. The rich royal blue satin flows with a luminous sheen that photographs brilliantly under any lighting. The detachable overskirt means you can make a breathtaking entrance with a full cathedral train, then simply unclip for unrestricted movement on the dance floor. The structured sweetheart bodice with pleated cups provides both lift and architectural elegance — no additional alterations needed.

Perfect For

• Prom Night — arrive in full drama, dance in full freedom
• Formal Galas & Charity Balls — a statement silhouette that commands the room
• Pageants — stage-ready drama with a regal royal blue palette
• Bridesmaid & Wedding Guest — available in 70+ colors to suit any wedding theme
• Quinceañera & Sweet 16 — a princess moment with a modern structured edge

🧼 Care Instructions

• Dry Cleaning.
• Do not wring.
• Do not bleach.
• Flat Dry.
• Low iron 120.

📏 Sizing
• Custom sizes available
• Refer to our Size Chart or How To Measure Page— sizes differ from standard US sizing
• When in doubt, size up — alterations are easier than letting out

🎨 Color & Illusion Mesh
• Colors may appear slightly different due to monitor settings, lighting conditions, and photography effects.
• Ivory and white are different shades — please check the color carefully before ordering.
• Some dresses feature illusion mesh details, including wedding dresses, prom dresses, evening dresses, and other formal styles.
• The mesh color is selected according to the specific dress design, lace pattern, fabric color, and overall style. Different mesh shades may create different visual effects on different skin tones and under different lighting conditions.
• If you have a specific preference for illusion mesh color, please contact us before production to confirm available options.

👗 Bra Cups & Support
• Most of our dresses come with removable bra cups, allowing customers to adjust the fit based on personal preference.
• If you prefer a more secure fit, fixed bra cups may be available for selected styles upon request. Please contact us before production to confirm whether this customization option is available.
• Additional fitting requirements should be discussed with our team before your order is processed.

⏱ Production & Delivery
• Rush orders available — contact us first
• Production time may vary depending on the dress style, customization requests, and order quantity.

✅ Quality
• Every dress is individually inspected before shipment
• We carefully check fabric, stitching, embellishments, and overall finishing before delivery.

💬 Need Help?
• Live chat & email support, 7 days a week
• Response within 24 hours

Total Delivery Time = Processing/Tailoring Time + Shipping Time
Processing Your Order
Depending on your ordered item, the processing/tailoring time will differ slightly.

Shipping Information
Shipping time differs for different places.
Please refer to the table below for the shipping method options, timings, and estimated shipping cost. up $99 free Shipping.

Shipping Method

United states,Australia,Canda,Germany,United Kingdom,France,New Zealand,Ireland,Spain:

Standard Shipping: 10-15 Days

Fast Shipping: 7-14 Days

All Other Countries:

Standard Shipping: 15-20 Days

Fast Shipping: 10-15 Days

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