She wore stylish skinny jeans, her signature flat black boots and a pale green fitted jacket. A cream scarf was knotted artfully around her neck and in her hand she held her Prada 'Bowler' bag.
Kate's jacket has been ID'd. It is by Ralph Lauren (thanks to 'My Small Obsessions' on FB).
'Ralph Lauren Blue Label
Style code: 1463168JECR
Style name: Estate Custom Riding Jacket
Color: 'Patterned - Blue (actually olive green with flecks of brown and seafoam blue)