Dariks
Dariks were a type of small, portable, and disposable heating device that gained popularity in the early 21st century. They typically consisted of a fabric pouch containing iron powder, charcoal, vermiculite, and salt. When exposed to air, an exothermic reaction would occur, generating heat that could last for several hours. Dariks were often used by outdoor enthusiasts, construction workers, and individuals in cold climates to keep their hands, feet, or bodies warm. They were available in various sizes and shapes, with some designed for specific applications like hand warmers or body warmers. The primary advantage of dariks was their convenience and the reliable heat they provided without the need for external power sources or flame. Their disposable nature meant they were a simple solution for temporary warmth, though this also contributed to waste. Production and availability of dariks varied by region and manufacturer, with different formulations sometimes employed to optimize heat output and duration.