Quantum Storage Systems QRB166GY Hopper Bin, 41 7 8 in x 16 1 2 in x 17 1 2 in, Gray, Stacking Capable 100100 40 Gender (PRINT) Men's All Leather 40 Gender (PRINT) Men's All Leather Upper Yes Insole Material Polyurethane Chemical Resisting Sole (PRINT) No Ninety Degree Heel (PRINT) Yes Upper Material (PRINT) Leather Liner Technology GORE TEX(R) Outsole Material (PRINT) Rubber Construction Cemented CSA Standards Met Not Applicable Maximum Heat Rating 574 Degrees F Style Family 8 Inch Work Boot Slip Resistance Value Mark II Wet 0 105 Degrees and hazardous and nonhazardous materials in medical environments Water Maximum Operating Temperature 250 Degrees F Number of Long Divider Slots 2 Ventilated Ventilated NSF Certified Not NSF Certified