5.11 Tactical ATAC Boots. ATAC stands for All Terrain, All Condition. Nylon and full-grain leather uppers; Wicking lining; Oil and slip-resistant, quiet outsole; Shock Migration System offers ultimate support; Cushioning insole foam; Dual-density Poliyou cushioning; Non-metallic shank stability; Shock-absorbing, injection-molded phylon midsole.; State Width: medium or wide; and Size. Order up now! Offer a YKK side zipper for easy on / off. Each approx. 8" h., 24 ozs. Men"s 5.11 Tactical Series ATAC 8 Boots, Black