heidi klum season 10 finale
Sultry and elegant, there's nothing quite as subtly sexy as the backless dress. Whether it's a full length gown worn on the red carpet (Heidi wore this Alexandre Vauthier nude number for the season finale of 'Project Runway' during Fashion Week in NYC), or a short and casual day dress, it's a fun trend to try.

Take a look at our picks for backless dresses-whether you want something totally glam like Heidi's, or something you can wear to a an afternoon event, there's a backless dress out there to match many different occasions. It's an unexpected way to show off some sass.