Avenger 7311 10 Inch Heavy Duty Construction Mining Boot Leather rubber sole Helcor Abrasion Resistant Leather Vamp and Cordura Side Panels with Steel Safety Toe Hydro Guard Water Resistant Construction 200 Gram Thinsulate Insulation, Rubber Slip- and Oil- Resistant, High Abrasion Outsole Poron XRD Energy Absorbing Ankle Pads Internal Metatarsal Guard and Lenzi Puncture Resistant Plate for Puncture Protection Gore Performance Sewing Thread Used in Upper Stitching for Greater Heat-, Abrasion-, & Rot-Resistance Safety Meets or Exceeds ASTM 2413-11 Impact Compression, Metatarsal Guard, Puncture Resistant, and EH Ratings