GORE-TEX Technology for 100% waterproof protection so your feet stay dry in wet conditions X-TENSA INVISIBLE TECHNOLOGY links the sole unit to the laces via internal enforcement for enhanced stability ECCO ZONAL FLUIDFORM Technology midsole with 3 different zones offers ground-breaking comfort, stability and flexibility Removable, washable OrthoLite insole for long-term cushioning and breathability Breathable and premium ECCO leather from the shoemaker's own tanneries.