Kate Middleton wore a beautiful Alexander McQueen Black Watch tartan dress coat while on a visit on her old school, St Andrew's, in Pangbourne, Berkshire today.

The Duchess of Cambridge teamed the coat with her old faithful black knee-high ‘Rhumba’ boots by Aquatalia by Marvin K and the sweeping fringe she debuted this week.

The coat is a fashion-savvy choice for the Duchess: tartan is big trend for this season, having had quite a presence on the autumn/winter 2012 catwalks at , and , as well as Alexander McQueen.

Since she commissioned McQueen creative director Sarah Burton to design her wedding dress, the label has been a go-to label for the Duchess’s wardrobe, whether for public outings or red carpet events. Long may the stylish partnership continue.

Backstage at the Alexander McQueen spring/summer 2013 show