Apparently the latest "it" accessory isn't a big bauble or bangle or friendship bracelet or stack. This one can be added on with just about anything and it's none other than a Nike Fuel Band. Designed to look like an oversized rubber band on your wrist, the band calculates your overall exertion during the day and holds you accountable to your fitness goals. Paired with a few of your other favorite gems and it looks pretty chic. Fashion may be into fitness after all.