I use Vibram for running and vivobarefoot.com as daily shoes. My experience with both as on slippery surfaces like rocks after rain when hiking and on icy pavem

I use Vibram for running and vivobarefoot.com as daily shoes. My experience with both as on slippery surfaces like rocks after rain when hiking and on icy pavement was that traction was definitely worse compared with good ordinary hiking or winter shoes/boots. But as it was much easier to keep balance, the net result was improvement. I suspect with barefoot shoes even those with a rubber sole with a pattern the depth of the pattern is just too shallow. So effectively the weight is distributed over the whole surface of the foot. With ordinary shoes pattern on the soles and heels make the contact surface much smaller and pressure higher improving traction.