Traction is incredibly good, due to the grippy material, the separation of the toes, and the addition of siping, or tiny zigzag cuts etched into the soles that expand into little treads as the sole flexes.

The VFFs are also surprisingly comfortable. Each toe is snuggled inside its own little pocket, which is not only cozy, it also gives your feet a surprising amount of feedback about the ground you're standing on. Your toes, freed from their typical leather prisons, act like a tiny topography sensor array.