Scientifically formulated premium PVC compound with superior tensile strength and tear resistance. Excellent durability and comfort. CSA Z195-09 / ASTM F2413-11 – Class #1 Steel Toe and Plate. Heavy duty polyflex premium PVC compounded sole. Ideal for: building construction, excavation, landscape/gardening, field work, waste and recycling facilities, wood/concrete cutting, utilities, masonry, road construction.