THESE BABYS ARE BAD!!!!!!! GOOD BAD! LOOK AT THE TEETH ON THE OUTER SOLE! THEY REALLY DIG INTO THE DIRT FOR THESE TRAIL RUNNERS. SPACED APART ENOUGH NOT TO TRAP DIRT/MUD IN BETWEEN THAT'S HARD TO REMOVE. SOLES ALSO HAVE A HIGH DEGREE OF FLEX TO THEM. THE SHOES OVERALL ARE VERY LIGHTWEIGHT.