The ESEE Junglas - Pronounced "Hoonglas" Named After the Colombian Jungla Special Operations Forces. Designed For Latin American Jungle And Counter-Narcotics Operations. ESEE Knives are made from high carbon 1095 steel. And while 1095 is a top choice for professional cutlery designed for hard use, it will rust and stain if not properly cared for - especially on the cutting edge and around the laser engraving. It is the user's responsibility to keep the blades properly lubricated and cleaned. We suggest using a dry film rust inhibitor.