We've all laughed at our parents' wedding photos (Mom, that floppy hat—really?). So, what exactly makes a wedding dress timeless? To find out, we asked top designers to point out the styles that continue to be popular several seasons (and even years) later.

Watters Brides

Florence (2008)

"Florence is the perfect combination of a classic shape and subtle yet extravagant detailing," says the designer. "This gown paved the way for the use of 3-D detailing in a soft color palette, which has become a Watters trademark."

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Photo: Courtesy of Watters Brides