Sidi Adventure Rain Boots The ultimate Adventure boot combines Sidis best touring and off road features into an effective adventure boot design Sole Soft lugged sole for maximum grip. Composite inner sole. Protection Rigid, shock resistant, anatomically shaped heel for maximum protection. Malleolus external guard to enhance protection of those tender small foot bones. Split grain leather inner anti-wear/heat panel. Fit Function Membrane equipped to add a water resistant yet breathable barrier between the elements and the rider's feet. Single Flex System upper. Exclusive cam-lock buckle system. Replaceable strap / buckle system. Removable arch support. Top grain leather and Lorica construction. Slim, cool non-bootie design. Cambrelle lining