What make glasses that can see throw clothes?

Glasses that can see through clothes typically rely on advanced imaging technologies, such as terahertz radiation or millimeter waves, which can penetrate various materials without harmful effects. These technologies analyze the reflected signals to create images of objects hidden beneath surfaces. However, such devices raise significant ethical and privacy concerns, leading to strict regulations and limitations on their use. As a result, while the technology exists, it is largely restricted to scientific and industrial applications rather than consumer use.