When we look at history, we seem to think that the only way to regulate your body's heat is to take off or put on your clothes. As technology continues to evolve, smart thermal inks offer the possibility of creating ambient temperature responsive clothing, and the team has realized this vision through a cross-fertilization of design and technology. The thermal responsive fashion design can self-adjust to the ambient temperature, thus achieving automatic temperature control of the garment without the need to add or remove clothes.