Introducing Blundstone's new 2240 notched-sole boot in Black , the one that raises the bar in terms of grip, comfort and value for money. Blundstone takes ease of use, durability and all-season comfort to a new level. Premium waterproof leather. Notched rubber outsole with deep tread pattern designed to increase slip resistance. Comfortable removable arch insole with XRD® technology for maximum cushioning. Leather lining for added comfort.