Designed to meet the needs of public safety personnel worldwide, the A.T.A.C. 2.0 6" Side Zip is a lightweight boot that will keep your feet cool and comfortable all day long. A dual durometer Ortholite. insole and Achilles heel flex zone keeps your feet supported and moving freely. The slip and oil resistant sole features 5.11's patented Shock Mitigation System., which helps make those long hours in the field fly by. No matter what your mission may be, the A.T.A.C. 2.0 6" Side Zip is with you all the way.