Biom natural motion technology brings the player closer to the ground using an anatomical last Gore-tex waterproof technology combines optimised breathability & protection against the elements Ecco tri-fi-grip with three different zones - stability, durability and rotational support Removable, antimicrobial ortholite-inlay sole for long-term cushioning and enhanced breathability Yak leather uppers, extremely strong & lightweight for increased breathability and durability