The breathable Thorogood Day One Safety AST Low work shoe has the durable construction and all day support you're looking for to get the job done. Compression-resistant round toe, slip-resistant outsole passes the ASTM F2913-19 safety standards. Lace-up Composite Safety Toe work sneaker meets ASTM F2412/2413-2011 I/75 C/75 EH (electrical hazard) safety standards. Durable knit upper and D01 mesh lining; Padded collar and tongue for added comfort while in motion; Removable mesh and EVA insole with heat transfer logo. Supportive EVA midsole, flexible rubber outsole. Style numbers: 509-9100 (Amazon Blue)