Non-metallic composite safety cap protects toes against falling and heavy rolling objects ASTM F2413-18 M/I/C EH Certified to CSA Standard Z195-14 with Grade 1 toe protection, protective sole protection and electric shock resistance (ESR) protection Puncture resistant work boots feature the metal-free SWEN-FLEX midsole for foot surface protection ASTM F2413-18 PR rated for puncture resistance