The Department of Defense, through the NAVSUP Fleet Logistics Center Norfolk, is seeking to procure Replacement Thermal Measuring Manikin Systems for the Navy Clothing and Textile Research Facility (NCTRF) located in Natick, MA. The procurement involves a Sole Source Firm Fixed Price Contract awarded to Thermetrics, LLC, which includes a comprehensive suite of thermal measuring systems, such as a 30-zone Newton sweating thermal manikin system and various partial manikin systems designed for advanced thermal testing. These systems are critical for evaluating clothing and textile performance under thermal conditions, ensuring the safety and comfort of Navy personnel. Interested parties wishing to challenge the sole source designation must submit their written challenges to kelly.polson@navy.mil, providing sufficient information to demonstrate the existence of an equivalent product that meets the government's needs.