Scarpa Womens Women's Ignite Trail Running Shoe 100% Textile and Synthetic Imported Rubber sole 3D Mesh Upper - Allows air to fully permeate the shoe's interior, encouraging an environment that is cooler, drier and altogether more pleasant. EXO Skeleton - Straddles the upper to strengthen its structural integrity without adding undue weight. Synthetic Nubuck Material Blend - Applied across areas that are particularly prone to wear, protecting them from knocks and abrasions. Stretch Lining - A soft, pliable fit adheres comfortably to the contours of the wearer's foot. Heel Collar - Works in concert with the lacing system to facilitate quick and easy entry.