A black leather knee high boot is the single most useful leather boot you will own. It works year round. It works with skirts and dresses and cropped trousers and full length trousers. The black leather means it reads as intentional dressing in every season and every context. A quality knee high boot in black leather has a substantial shaft that holds its shape and a heel that feels stable when you walk. The leather should be supple but substantial and the lining should be durable enough to handle regular wearing. The proportions matter enormously. A good knee high boot elongates the leg rather than cutting it off. These are the black leather knee high boots that justify the investment because they become the boot you reach for constantly.