Amazon.com: 5.11 Tactical Men。5.11 Tactical ATAC 150204 Men\'s Size 6 Side Zip 8\" Boots Black Leather Security Work Boots The boot worn by the world\'s leading public safety personnel, the 5.11® A.T.A.C., just got promoted. It\'s lighter and more comfortable, yet maintains its reputation for toughness and durability. A new air flow tongue and full-length dual durometer Ortholite® footbed work to keep your feet cool, dry and comfortable all day, every day. Another new feature, the Achilles heel flex zone, gives a critical part of your foot more range of motion without compromising support. The full-grain leather toe, 840D nylon upper and shock mitigation system provide the kind of rugged protection you need; while the knife pocket keeps an important ally within reach. * Full grain leather toe and 840D nylon upper * Ortholite® Insole * Air flow breathable tongue construction * YKK® side zipper * Ortholite® Achilles cuff for comfort * ASTM Slip-resistant outsole * 840D nylon upper, Full grain leather toe