The A.T.A.C. Storm 2.0 improves on its predecessor with lighter weight and improved comfort without compromising durability and performance. 5.11’s SlipStream waterproof/breathable and bloodborne pathogen resistant membrane, the 5.11 A.T.A.C. 2.0. A 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 roughed out suede 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.