Brown leather knee-high boots with heel Who needs to show some leg when you can flaunt these sexy boots instead? The Isobel knee-highs are made from supple brown leather that bunches slightly at the ankle. They have an elongated square toe and slender heels that are easier to walk in than you might first think. Consider them the bread and butter of the footwear world - they are the kind of shoes that will work wonders with anything you own. Jumper and jeans? Check. Miniskirt and tights? Check. That’s winter sorted!