Slip Resistance. Our slip-resistant soles have tread designs which channel water, oil, and other slippery substances from the outsole’s lugs to create a superior grip. While there are no government regulations currently creating slip-resistant standards, according to an independent testing laboratory, a surface that produces a minimum dry or wet slip resistance value of 0.5 is classified as slip-resistant and U.S. Footwear sources often quote a value of 0.25 as a good safety margin for soilings tested on contaminated surfaces such as oil, greasy, oily/et, etc. All our slip-resistant footwear meets or exceeds current industry recognized guidelines.