... :solvents,mild acids,alkalis,some chemicals,oil and fats.wide grip tread for optimum dirt release and traction.comply with the new slip ... off spur on heel for easy removal.reinforced ankle,heel and instep for optimum support.material:pvc/nitril colour:yellow,white ... function of the boots:100% waterproof, resistant to acids,alkalis and oil, anti-corrosion, anti-Impact 200 Joules ,anti-puncture