These boots are designed for traction on snow. They utilize the same ergonomic design and materials as Granite Gear's Endurance Dog Boot with the exception of the sole which is built with the same fabric used in climbing skins for backcountry skiing. They mimic the natural directional texture of a dogs paw. Run a finger across the pad from front to back and the pad feels smooth, run your finger from back to front and you can feel the grip, just like climbing skins!