Blue SPD-SL cleats have 2 degrees of float 1 degree in each direction
Shimanos newest cleat option a middle-ground between yellow (SM-SH11) and blue (SM-SH12)
Allows for a small range of movement while still delivering a high amount of pedaling efficiency
Floats Pivot point is at the front of the cleat, eliminating lateral sliding movement while allowing a small amount of angle change from the pivot point back towards the heel