Northwave blaze plus mtb spd shoes these northwave blaze plus mtb shoes feature a triple density carbon sole and an ultra light biomap upper providing support and comfort for whatever type of trail youre on features triple density speedlight 3d carbon sole with a carbon insert in the pedal area and a stiffness index of 120 biomap unibody upper made of ultralight pu eliminates hotspots thermowelded reinforcements for added protection double slw2 dial the only one with step by step and full