Due to the climate change effects, the average temperature in the 2100s might be between 2 and 9.7°F warmer-an excessive heat wave beyond human tolerance. CJ-2050 is a speculative wearable device that provides body cooling through a jewelry design when in direct contact with the skin. Cold water constantly travels through dedicated tubes to reduce the body's temperature at key points in the circulation system. A Peltier module structure has been utilized to keep the water cold and a pump system irrigates the water through the tubes. This project aims at reimagining our daily jewelry in a dystopia that may not be too far away with a wearable design that intertwines body heating regulation, speculative jewelry design, and aesthetics.