Circulatory Jacket is an interactive wearable that incorporates heart rate and galvanic skin response sensors to visualize changes in heart rate and stress, both for those wearing the jacket and those around it, through light. Heart rate and galvanic skin response commonly act as a representation of changes in activity, stress, and the state of a person's body. These are frequently used as a key metric of a person’s well being, status, and feeling, detailed by the Cleveland Clinic. Rapid increases or decreases are changes that someone would often watch for and attempt to notice.

Circulatory Jacket is targeted at wearers with a keen interest in their health and those who need to monitor for changes, especially for conditions like long COVID. Heart rate remains a keystone in monitoring and evaluating the overall health of a person. The light patterns of Circulatory Jacket cycle back and forth starting red to symbolize oxygenated blood and returning to the heart blue. Visualized by abstracting the path blood takes through the body, using an LED stripe, it speeds up as heart rate increases and adds a yellow tinge as the GSR value increases. The wearer will be able to notice changes in brightness and speed, both positively and negatively, and externally display them in an abstract way to others around them. Circulatory Jacket helps the wearer and the people they’re close to develop a sense of what various heart rate patterns are normal for the wearer and notice unexpected changes.