Barefoot On-the-Run was tested extensively for slip resistance. Full test results can be viewed below (PDF) :
SUMMARY: Barefoot OntheRun (OTR) is suitable in all dry work environments. Barefoot is suitable for wet concrete.
OTR is not suitable in oily environments. Do not use Barefoot OntheRun in oily or oily wet environments such as restaurant and kitchens.
Do not use this product in RESTAURANTS or WET TILED FLOORS.