The 12-inch Derrickman boot features layers of comfort with a J-Flex Flexible Comfort System insole, the Justin Stabilization Technology, Ortholite Comfort Foam insole, and a Dri-Lex cover. Its multi-density rubber and EVA combination outsole offers lightweight durability. This boot also provides an Achilles Relief System that eliminates weak spots in foot comfort by using stretchable material, high-density foam, and moisture-wicking lining to provide flexibility, support and breathabilitythe Hybred Orthotic insole provides all-day comfort. This boot meets ASTM F2892-11, EH safety footwear standards.