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 X-TENSA INVISIBLE TECHNOLOGY links the sole unit to the laces via internal enforcement for enhanced stability ECCO FLUIDFORM Technology creates lightweight, ergonomically advanced soles that offer cutting-edge comfort and flexibility Removable and washable Ortholite inlay sole for long-term cushioning and breathability. Colour: blue