ECCO Performance Leather from our own tanneries is combined with a new, super-stretchy mesh sock,ECCO MTN GRIP has three different sections providing traction, stability and rotational support throughout the swing,ECCO FLUIDFORM™ Direct Comfort Technology for cushioning, rebound and flexibility,Removable insole for long-term cushioning and breathability, with the option of taking it out for extra width,Breathable comfort and innovative performance are mixed with a contemporary, sneaker-style aesthetic in the ECCO MEN'S GOLF BIOM® C4. For 360-degree breathability and 100% waterproofing, the GORE-TEX SURROUND® construction is combined with the EXHAUST GRID that enables air ventilation towards the sole of your foot. Crafted from ECCO Performance Leather and a new, super-stretchy mesh sock, the hybrid is set on the progressive ECCO MTN GRIP outsole, and powered by BIOM® NATURAL MOTION® Technology.,BIOM® NATURAL MOTION® Technology brings you closer to the ground for stability and control,GORE-TEX SURROUND® for 100% waterproof protection and 360-degree breathability