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 matte-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. The utility belt is a modified climbing harness in bronze with the chest and shoulder straps removed for ease of movement. It features magnetized impact-resistant pouches and canisters attached to the belt at ergonomic points for ease of reach. It carries a magnetic gas-powered grapple gun, an encrypted cell phone, bat-shaped shuriken, a medical kit, smoke bombs, mini explosives, periscope, remote control for the Tumbler, mini-cam, money and other unspecified equipment. Batman's cape is made of "memory cloth" also developed by Fox. It is essentially flexible in its normal state, but becomes semi-rigid in a fixed form (Batman's wings) when an electric current is passed through it from the microcircuits in the palms of his gloves. Bruce also adds metal gauntlets with scallops on the forearms, an innovation derived from his experience as a pupil of Ra's al Ghul's League of Shadows. Mainly used to block against knives or other stabbing weapons, Bruce managed to surprise Ra's by breaking the blade of his ninjatō in multiple places with the gauntlets. The left boot heel contains a high-frequency sonic "sounder" which can summon bats