Zara Phillips in Roberto Cavalli

Zara Phillips at the opening of the Cheltenham Horse Racing Festival, March 16, 2010, in Cheltenham.

Zara Phillips @ Cheltenham Horse Racing in Roberto Cavalli

Zara Phillips @ Cheltenham Horse Racing in Roberto Cavalli

Zara Phillips at the opening of the Cheltenham Horse Racing Festival, March 16, 2010, in Cheltenham.

Zara Phillips @ Cheltenham Horse Racing in Roberto Cavalli

Zara Phillips @ Cheltenham Horse Racing in Roberto Cavalli