GORE-TEX 100% waterproof protection keeps your foot dry ECCO FLUIDFORM Direct Comfort Technology for lightweight comfort and flexibility BIOM NATURAL MOTION technology brings you closer to the ground using an anatomical last ECCO MTN GRIP outsole provides stability, traction and rotational support through three different sections Crafted from durable ECCO Leather and an X-TENSA INVISIBLE TECHNOLOGY for enhanced stability.