CARBON-FIBER TOE: Left and right asymmetrical, non-metallic carbon-fiber (composite) toes offer unobtrusive fit and are 15% lighter than steel; These boots meet CSA Z195 standards for electrical shock resistance and Grade 1 standards for toe protection
WATERPROOF: KEEN.DRY is a waterproof, breathable membrane liner, keeping your feet dry and comfortable; Full-grain barnyard resistant waterproof leather helps resist the damaging effects of oleic acid, urea, sodium chloride, and ammonium hydroxide
TRACTION: Oil- and slip-resistant, rubber outsole; KEEN.POLAR TRACTION creates a cleat effect using micro glass filaments for increased traction on wet or oily surfaces, including ice; Meets ASTM F1677 Mark II and ASTM F2913 SATRA non-slip standards
PROTECTION: Meets ASTM D471 #903 standards for oil and isooctane chemical resistance; ASTM/CSA-certified, non-metallic, flexible puncture resistant midsole plate for underfoot protection; Heat resistant, rubber outsole rated up to 572° F / 300° C
SUPPORT & COMFORT: PolyAer PU footbed and KEEN Luftcell air-infused, PU midsoles are used for weightless comfort; Made with a 3/4 Goodyear welt construction for enhanced durability and flexibility and 600G KEEN.WARM insulation rated at -55 F/-48 C