Mens robust metal-free waterproof hi-leg metatarsal safety boot with quick access YKK metal free side zip. TPU Heel Support for Extra Durability and Injected PU Midsole. Rubber Outsole Heat Resistant to 300 Degrees.Hi-Leg Waterproof Metal Free Metatarsal Safety BootPoron XRD Internal Metatarsal GuardYKK Metal Free side zip for quick access and release200 Joules Fibre Glass Composite Toe CapAnti-Penetration flexible composite Midsole - Min 1100NEnergy Absorbent HeelRemovable PU Footbed Antistatic and Oil resistant OutsoleTPU Heel Support for Extra Durability and Injected PU Midsole and Scuff capInternal waterproof membraneRubber Outsole Heat Resistant to 300 Degrees