Meets NFPA 1971. I-MET Metatarsal Protection. Flexible Non-metallic Puncture-Resisting Textile Insole Material. This Utility And Rescue And Recovery Protective Ensemble Footwear Element Meets The Requirements Of NFPA 2013. Standard On Protective Ensembles For Technical Rescue Incidents, 2007 Edition. This Wildland Fire Fighting Protective Footwear Meets The Requirements Of NFPA 1977. Standard On Protective Clothing And Equipment For Wildland Fire Fighting, 2011 Edition. Astm F2413-11 M I/75/c/75 Steel Toe.