Differential: 8mm. FitKnit textile upper with dynamic midfoot wrap design accommodates a runner's foot as it moves and expands. Lace up closure delivers a secure, adjustable fit. My name is SHERRY WALJER from USA Massachusetts, i want to testify to the general public how my relationship was restored back by the great power's of Dr Larry after three months of loneliness, my ex lover called me after my contact with Dr Larry that he want us to come back and start a good home, now we are happily together again as lovers. All thanks to Dr Larry who did a love spell for me for my ex lover to return home.