Experience comfort like never before with the Chukka UltraLite Xâ„?Driving Moc. The leather upper and Nylon laces provide a secure fit. while the UltraLite Xâ„?technology makes the shoe 20% lighter. The ecoTWEEDâ„?and Blend85â„?footbed and Lining are made from recycled materials for a sustainable step.