Kristin Cavallari has stepped things up a notch in the fashion department during the past couple months, and my favourite look apart from her Zac Posen pink dress was the look she sported whilst headed to the Alexa Chung’s MTV show.

That day she wore a striped jersey dress, cuffed black blazer, and nude sandals. But what stood out the most was her sought-after Alexander Wang Studded Coco Duffel bag which we’ve seen her carry many times.

The buzz surrounding this bag was started by Mary-Kate Olsen who was spotted carrying it back in January, before it had even been presented during the Fall 2009 collection in February.

This bag sold out immediately this week on the Net-A-Porter US site, but is still available on the Net-A-Porter International site for £795/€975.62.

Credit: Fame Pictures.com & Baurer Griffin