Fifty years from now, style retrospectives of 2011 will no doubt spotlight the crossbody bag. At the moment, it’s the most ubiquitous and certainly one of the most useful bag styles in existence. History will flaunt its ability to hold a lot without weighing a woman down. No doubt the look, in some variation or another, will always be popular. For a modern essential you might consider passing along on some far-off date in the future, consider the Marc by Marc Jacobs Classic Q Percy Crossbody Bag. Small but surprisingly spacious, Percy is available in black and cream. Find it for $198 at Nordstrom.

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