Size 3au / 6us Rustic Black Blundstone boots Rustic black premium water-resistant leather - Black elastic side - Leather lined - Durable TPU outsole - Cushioned midsole for comfort - SPS Max Comfort system for outstanding shock absorption - Removable footbed with XRD® Technology in the heel strike zone for shock absorption and comfort - Extra set of footbeds for custom fit - Lightweight and comfortable