The Adventure Cap in Khaki is designed to be used in enviroments where quick identification may be necessary. Cap feature ventilated back mesh. Velcro attached ESEE patch on front. My favorite feature on the Adventure Cap - lack of hard button top of cap making it comfortable to wear traditional earmuffs when shooting. One size fist most except those of you with really small pin heads or those that are truly fat heads. (my attempt at humor) Cap is PRC