Kate Middleton's weekend started with a trip to the theater, where she wore a blue dress by Zara and a black jacket from Whistles. On Saturday, she took a carriage ride through London for the annual Trooping the Color ceremony — the official celebration of the Queen's birthday — in a gray dress by Erdem and a Jane Corbett hat. And on Sunday, Kate joined schoolchildren on a camping trip in Kent, wearing a Burberry blouse, skinny jeans from Zara, Le Chameau wellies, and an olive vest from the Really Wild Clothing Company to tackle the great outdoors. Later in the day, she threw on a brown jacket to watch her husband play polo in Tetbury, England, along with the couple's puppy, Lupo. See all four looks in our updated Kate Middleton Look Book.