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.

Angel Sanchez

Style N3014 (2008)

"This particular design resembles a custom gown I created for a celebrity's wedding and since then, it has done extremely well," says Angel. "The silhouette is timeless and it includes a touch of drama in the back with the cascading ruffle detail."

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Photo: Courtesy of Angel Sanchez