XT-6 Sneakers, White White Lunar Rock br / • Composition Upper: Synthetic / Textile br / • Outsole: Rubber br / • Insole: Textile br / • Lining: Textile br / • Quicklace™ lacing system br / • EVA cushioning br / • Lightweight construction combines tough TPU film and mesh designed to last br / • Chassis and cleat geometry designed for descents for increased stability over longer distances.