Made for soldiers to pursue combatants over diverse terrain, the Desert TFX has a rugged and aggressive outsole and Danner's patented lightweight TERRA FORCE X system, which provides stability and support. Designed for agility and breathability in hot, desert-like conditions, the Desert TFX incorporates a Dri-Lex liner, which mitigates hot weather with superior air and moisture exchange. Approved for optional wear for the U.S. Army per AR670-1.