For some reason, this always reminds me of the No. 5 Chanel ad where an open back dress was teamed with a No. 5 penchant. However, open backs with necklaces also look good for non-promotional activities! The silver chain necklace above looks great with Yola Thorp's top which is worn backwards to make an open back. I also love the style below, where pearl necklaces are draped round to create a romantic look. This pic is from Yellow Tete.