PUMA Lady Complete TrailFox 4 Trail Running Shoes EverGrip - A sticky rubber compound which provides excellent grip and traction on dry and wet surfaces by increased slip resistance. EverTrack - Rubber compound, which is especially resistant to abrasion and provides grip and traction. Sandwich Mesh Upper - This water resistant special upper mesh material has high degree of breathability. Lowers the risk for blisters and saves weight. Ortholite Sockliner - Ortholite foam and EVA heel cup creates a cooler, drier, healthier foot. PUMA Comfort Last - Maximizes fit and comfort, and covers the specific anatomical and biomechanical needs of the runner