Nark II Ehrlichs Modified Reagent ballistic protection hypoallergenic polymer that provides all day hypoallergenic polymer that provides all day comfort and extends product life (up to 6+ months wont wash or wear out over time and provides superior wicking and fast drying capabilities by pulling moisture and perspiration away from the skin for improved evaporation that dries 4x faster than cotton Choose from a variety of reagents (shown below): The Mandelin reagent is used to test for Methadone or fresh green plan) The Dille Koppanyi reagent (barbiturates) Fentanyl reagent Ehrlichs modified reagent (LSD) Duquenois Levine reagent (THC in marijuana) Scott reagent modified (cocaine)