1st Lt. Justin O’Brien, 88th Security Forces Squadron, discusses his idea for the liquid cooled plate carrier, or LCPC, and how he hopes the vest will ultimately benefit Airmen, Wright Patterson Air Force Base, Ohio, Jan. 10, 2022. O'Brien's design showed it could cool service members up to 30 degrees in hot and humid conditions during initial testing. (U.S. Air Force video by Austin Smith and Ryan Law) More