Rubber bottom unit is slip-resistant & oil-resistant, making it perfect for urban riding. Internally the TuscaderoÖ features a hi-rebound foam insole increasing its comfort D30« Ankle Inserts Side-Zip YKK« Entry Zippers Reinforced Shifter Overlay Oil-Resistant/Slip-Resistant Outsole Hi-Rebound EVA Foam Insole. BOOT W TUSCADRO CE BK 5