Both Pippa Middleton and Hilary Duff were seen spotted today wearing black leggings with brown boots. Even Katie Price loved this look last week whilst shopping. On both sides of the pond, this trend is picking up speed, where once brown boots were typically worn with denim or trousers. I love mixing the brown and the black for both casual and work wear and I've gathered a bunch of different styles for you to shop below. What do you think of this look?