Danner 17311 16D Size 16 Men's 8 in Work Boot Alloy, Black AJ2DUX It features ER70S 6 It features ER70S 6 Pressure 1000 psi Coupler Body Material Brass Coupler Finish Plain Series 60 Body Material Brass Coupling Locking Type Sleeve For Use With ISO 7241 1 Series B Coupler Shut Off double Locking Mechanism Ball Bearing Material Stainless Steel Standards ISO 7241 1 Series B Includes Sleeve Lock Seal Material Nitrile Valve Design Poppet Operating Temp 55 Insole Material Polyurethane Outsole Material (PRINT) Rubber Metal Chip Resisting Sole (PRINT) No Chemical Resisting Sole (PRINT) No Manufacturer Suggested Sole Slip Rating (PRINT) Better Shank Material (PRINT) Fiberglass Electrical Hazard (EH)