Chaco Women's Zcloud X Sandal Action Blue UPPER: Double-strapped polyester jacquard webbing upper wraps around the foot and through the midsole for a customized fit. Adjustable and durable high-tensile webbing heel risers. Injection-molded ladder lock buckle. MIDSOLE: Women's specific LUVSEAT dual-density PU midsole. OUTSOLE: Non-marking ChacoGrip rubber compound. 3mm lug depth. Chaco Women's Zcloud X Sandal Action Blue