Puncture resistance with a force of 1100 N - puncture resistance with a force of 1100 N Slip resistance on ceramic, coated with SLS solution and on steel, coated with glycerol - slip resistance on ceramic substrate, covered with SLS solution and on steel substrate, covered with glycerol ESD - ESD - protection against electrostatic discharge Antistatic footwear - antistatic properties Energy absorption in the heel area - energy absorbtion in the heel area Water permeability and water absorption of the face material - permeability and water absorption of the upper material ATEX - footwear intended for use in potentially explosive areas