The Batsuit in the reboot "Batman Begins" (2005) is given the most complete description ever seen in a Batman film and the comic books. Derived from the "Research and Development Program" within Wayne Enterprises' "Applied Sciences Division", the suit is described by Lucius Fox as a Nomex survival suit originally intended for advanced military use but was considered to be too expensive for the United States Army and military in general. Based on an advanced infantry armor system constructed from Nomex, the first layer of protection is an undersuit with built-in temperature regulators designed to keep the wearer at a comfortable temperature in almost any condition. The second layer of protection consists of armor built over the chest, calves, thighs, arms and back. This armor features a kevlar bi-weave that can stop slashing weapons and can also deflect any bullet short of a straight shot impact, and reinforced joints that supposedly allow maximum flexibility and mobility, which Batman finds still hinders his movements due to its weight. The armor is then coated with a black latex material for camouflage and to dampen Bruce's heat signature, making him difficult to detect with night-vision equipment. Made of a graphite material, the cowl acts as a protective helmet. The cowl's Kevlar lining is supposed to be bulletproof. A manufacturing defect in the graphite used in the production of the first shipment of the cowl's components made its outer shell incapable of withstanding blunt trauma (a flaw Alfred demonstrates to Bruce using a baseball bat). The second shipment (not shown) was supposed to fix this problem. An advanced eavesdropping device is concealed within the cowl's right ear and enables Batman to listen in on conversations from a distance.