24 Hour Fitness President and CEO Carl Liebert and TRX CEO and inventor Randy Hetrick, pose in front of TRX Suspension Trainers at Marina Green, during The TRX Challenge, Oct. 6, 2012. Liebert and Hetrick joined forces for the 2012 San Francisco Fleet Week to honor service members for their selfless devotion in safeguarding our country. From Oct. 3-8, Marines and sailors of the 13th Marine Expeditionary Unit, I Marine Expeditionary Brigade, will participate in numerous community outreach events including the Italian Heritage Day parade, urban search and rescue demonstrations, park restoration projects and hospital visits. (U.S. Marine Corps photo by Lance Cpl. Catie D. Edwards/Released)