Clarkdale Jax, women's ankle boots, black leather - A wardrobe staple you can't be without. Clarkdale Jax is our premium black leather ankle boot with an ankle strap and buckle detailing for added interest. The 6cm block heel with a stacked effect offers wearable height, while the rubber sole provides grip. For added luxury, our designers have used a breathable leather lining and sock for exceptional comfort.