Insole: Polyurethane Removable Insert on Flexible Double Rubber
Shank: Steel Triple Ladder Shank
Outsole: Exclusive Vibram® FIRE & Ice Sole with Chiseled Edge Lugs
Special Features: Meets the requirements of NFPA 1971-2013 Standard on Protective Ensemble for Structural Fire Fighting, Current Edition, NFPA 1500, Fire Department Occupational Safety and Health Program, and ASTM M 2413-11 M I/75 C/75 PR EH rating. Tested for and meets CAN/CSA-Z195-M92 Electric Shock Resistance. Flexible Non-metallic Puncture-Resisting Textile Insole Material, Built In Shin Guard, Black Combat Superknit and 4 Oz. Thermal Barrier, Oblique Steel Toe, Made In USA by ISO 9001 Certified Shoe Company.