Joshua McKinley for Johnathan Kayne Collection 3321

Turn every head in the Johnathan Kayne 3321, a show-stopping royal blue strapless mermaid prom dress from the Joshua McKinley for Johnathan Kayne Collection. Crafted in a shiny 4-way stretch Lycra that hugs every curve, this gown features a plunging sweetheart neckline, a sparkling beaded bodice, and a daring high front slit that flows into a dramatic sweeping train. The fitted silhouette and liquid-shine fabric make it a standout choice for prom 2026, pageants, evening galas, and black-tie events where you want to feel confident, glamorous, and unforgettable.

At Jan's Boutique in Cherry Hill, NJ, the Johnathan Kayne 3321 is available in royal blue (with white and additional colors offered by request) in sizes 000-16, and it ships tax-free with no sales tax on dresses or alterations. With 15,000+ gowns in stock, 50+ dressing rooms, and on-site expert tailoring, brides, prom-goers, and special-occasion shoppers travel from across Philadelphia and the tri-state area to try this style on in person. Visit us at 406 Marlton Pike E, Cherry Hill, NJ 08034, call 856-428-8181, or shop online to make this sparkling royal blue strapless prom dress yours.