The Department of Defense, through the Naval Health Research Center (NHRC) in San Diego, California, intends to award a sole-source contract for the procurement of Smart Heated Wool Sock prototypes. This contract will involve the delivery of two pairs of smart heated wool socks, complete with controllers, batteries, chargers, and a user guide, aimed at enhancing soldier comfort and performance in various conditions. The selected contractor for this procurement is Cornerstone Research Group Inc., based in Miamisburg, Ohio, with the statutory authority for this sole-source procurement being 10 U.S.C. 3204(a)(1). Interested parties are encouraged to submit their responses referencing N6311626Q0509, including their company details and contact information, to David L. Hill at david.l.hill4.civ@health.mil.