Bulletproof glass, also known as ballistic glass or bullet-resistant glass, is a transparent material designed to withstand the impact of bullets and other projectiles. It is typically made by layering polycarbonate, acrylic, or laminated glass with thermoplastic materials such as polyvinyl butyral (PVB) or ethylene-vinyl acetate (EVA) to enhance its strength and impact resistance. The thickness and composition of bulletproof glass vary depending on the level of protection required, with some variants capable of stopping high-caliber rounds. Despite its reinforced structure, it maintains optical clarity and is commonly used in security applications such as banks, military vehicles, armored cars, and high-security buildings.