GORE-TEX waterproof membrane - offers exceptional breathability and waterproof protectionMesh and TPU upperWebbing loops provide a secure fitHyperlock molded TPU heel counter - for added securityBellows tongue keeps debris outKinetic Fit Tri removable contoured EVA insoleQ FORM 2 dual-density midsole with heel-centring technology ' providing gender-engineered alignmentVibram Megagrip sole - improves stability4.5mm lug depth