Kate Middleton Stuns at National Review of Queen’s Scouts

Royal mom-to-be was glowing as she honored hundreds of Scouts Sunday

Kate Middleton is a vision in mint.

The 31-year-old royal mom-to-be looked stunning as she honored the achievements of hundreds of Scouts at Windsor Castle Sunday, showing off her bump in a mint green cotton Mulberry coat, a Whiteley fascinator and nude LK Bennett heels.

The Duchess of Cambridge, who is a trained scout volunteer, also chatted with young Brits who received the Queen's Scout Award, the highest honor a scout can achieve, according to the BBC.

The award is given to scouts between the ages of 16 and 25 for achievements including participating in regular community service for a year.

Since Middleton joined the scouts in 2012, more than 2,800 new adult volunteers have joined the organization, the second biggest rise since 1986.