The Department of Defense, specifically the Naval Air Warfare Center Aircraft Division (NAWCAD), is seeking innovative solutions for a passive cooling and heating system aimed at enhancing thermal regulation in clothing for Navy and Marine Corps aircrew. The primary objective is to develop a system that allows aircrew to actively manage body temperature during flight while maintaining thermal protection during in-water survival, addressing the challenges posed by current anti-exposure coveralls which can lead to overheating and discomfort. This initiative is crucial for ensuring the safety and effectiveness of aircrew operations in extreme environmental conditions, with the potential for applications in commercial sectors as well. Interested parties should note that the solicitation is set to open on January 8, 2025, with proposals due by February 5, 2025, and can find more information at the provided source link.