6 Forced Entry Desert Tan Boots Are ISO 9001 Certified. Featuring a suede leather upper with breathable mesh. these boots are designed for ease of mobility. With an EVA midsole and rubber outsole. as well as a mountaineer sole for good gripping. the 6 boots are built for any field condition. The Forced Entry tactical boots also feature a steel shank for support.?a comfort collar. and rustproof eyelet system.?