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    Baby Blue Trumpet Mermaid Backless Lace Long Sleeve Prom Dress

    $298.00

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    ANNAKOO · EVENING EDITION

    Baby Blue Lace Mermaid Prom Dress with an Open Back

    Soft color. Sculpted lines. An unforgettable exit.

    ANNAKOO baby blue long sleeve lace trumpet mermaid prom dress with a fitted silhouette

    This baby blue mermaid prom dress pairs the romance of lace with the confident appeal of an open-back silhouette. Long sleeves create an elegant frame, while the fitted trumpet shape follows the body before opening toward the hem. The result is a formal evening look that feels delicate in color and distinctive in structure.

     

    01 / THE DESIGN DNA

    Four details that define the look

    01. A soft baby blue palette

    A light, airy blue gives the gown a romantic visual identity and pairs beautifully with silver, crystal and pearl-inspired accessories.

    02. A lace-led finish

    Lace brings texture and intricate visual interest, setting this style apart from plain satin or minimalist evening gowns.

    03. Long sleeves, refined lines

    The long-sleeve design balances the open back with additional coverage through the arms, creating an elegant contrast between covered and exposed details.

    04. A trumpet mermaid silhouette

    A close-fitting shape through the body transitions into a flared lower skirt, giving the gown its signature sculpted outline.

    02 / THE REVEAL

    A different perspective from behind

    Back view of the baby blue lace long sleeve mermaid prom dress showing its open-back design

    The open back is a defining feature of this long-sleeve formal gown. From the front, the lace and sleeves establish a polished, romantic mood; from the back, the exposed design adds a more dramatic note. This front-to-back contrast makes the dress worth considering for shoppers who want a traditional formal silhouette with a more striking finish.

    03 / THE OCCASION

    Made for a memorable entrance

    Designed as a statement-making formal dress, this baby blue lace mermaid gown is a natural choice for prom, school formal dances, evening celebrations and other dressy occasions where a refined full-length look feels right.

    Style it with intention

    Jewelry: Choose delicate silver earrings or crystal accents to complement the cool blue tone without competing with the lace.

    Shoes: Silver, nude or pale blue heels can create a coordinated formal look.

    Hair: An updo or swept-back hairstyle can draw attention to the neckline, sleeves and open back.

    Undergarments: Plan around the open-back construction. Check the back coverage and support requirements before choosing a bra or adhesive alternative.

    04 / PRODUCT DETAILS

    The essential details

    Product type Prom dress / formal evening gown
    Color Baby blue
    Silhouette Trumpet / mermaid
    Design details Lace, long sleeves, open back
    Listed price US$298.00 at the time reviewed
    Size options US 2–14, US 16–22W and custom-made option, as listed on the product page

    Please check the live product page for current pricing, available options, measurements and ordering details. Screen settings and lighting may affect the appearance of the blue color.

    05 / BEFORE YOU ORDER

    A considered fit starts with measurements

    A fitted mermaid prom dress depends on accurate measurements through the bust, waist and hips. Compare your measurements with the current ANNAKOO size chart instead of relying on your usual clothing size alone.

    If you are considering custom sizing, review the measurement instructions carefully and confirm any fit questions before placing your order. Also allow enough time for production, shipping and any alterations that may be needed before your event.

    06 / FREQUENTLY ASKED QUESTIONS

    What to know about this baby blue prom dress

    What makes this baby blue mermaid prom dress distinctive?

    Its identity comes from the combination of a soft baby blue shade, lace detailing, long sleeves, an open back and a fitted trumpet mermaid silhouette. Together, these features create a balance of romantic texture and a more dramatic evening look.

    Is this dress suitable for prom and formal events?

    Yes. The gown is listed as a prom dress and its formal silhouette makes it a candidate for prom night, school formal dances, evening parties and similar special occasions. Confirm any event-specific dress code before ordering.

    How should I choose the right size?

    Measure your bust, natural waist and hips, then compare the results with the size chart linked on the product page. Because the silhouette is fitted, pay particular attention to hip measurements. Check the custom-made option if standard sizing does not suit your measurements.

    What bra works with an open-back prom dress?

    The best option depends on the exact back opening, bust support needed and personal comfort. Consider a suitable low-back solution or adhesive support, and check its compatibility with the dress before the event. Do not assume a conventional bra will remain hidden.

    What accessories complement baby blue lace?

    Silver jewelry, crystal earrings, understated metallic heels and a small evening bag complement the cool color palette. Since the lace and open back already provide visual interest, a restrained accessory selection can keep the overall look balanced.

    Will the color look exactly the same in person?

    The displayed shade is baby blue, but the perceived color may vary with screen calibration, lighting and photography. Review all available product images and contact ANNAKOO if you need clarification about the shade before purchasing.

    THE FINAL LOOK

    Romantic in color. Confident in silhouette.

    Explore the details, review the size chart and choose the fit that works for your next formal occasion.

    Explore the Dress
    How To Measure

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