long prom dresses navy blue Lace A-line Backless Dress With Slit SP853 Claim your graceful Backless Mermaid Navy Blue Velvet

Fishtail/Mermaid Best for: Hourglass figures Fishtail or mermaid dresses are fitted down the body and flare out at or below the knee

To help you begin your search, we've rounded up the best rehearsal dinner dresses on the market, from white lace frocks to floral printed gowns

Instead of accentuating your bodys natural form, an O-line dress flares out and is worn to make a statement

With a full skirt and invisible zipper fastening, this dress is sure to turn heads

Her skirt, cut from our luxe satin, creates a glamorous mermaid silhouette

"If you fancy wearing a maxi dress, just make sure the fabric isn't too dressy," the fashion expert says