You’re looking at the patented diver propulsion system currently used by the U.S. military for combat swimmer applications. Its advanced design requires purchase approval from the U.S. Department of State. The system’s twin 6″ diameter thrusters mount to the outside of a diver’s lower thighs just above the knees, while the power source and throttle setting secures around the waist. With a maximum underwater speed of 3.5-knots, the thrusters’ virtually silent brushless electric motors provide powerful operation that relegates diving fins to controlling attitude and direction. This propulsion system provides hands-free operation, which is one of the reasons why the military prefers it for reconnaissance, search and rescue operations, and hull inspections. Its lithium-ion battery provides a range that exceeds two miles; an extra battery may be carried and ‘hot swapped’ underwater to extend operation. Want one? It’ll set you back a cool $31,500. Click here to view the first image in today’s viral picture gallery. Continue reading for the five most popular viral videos of today, including what The Legend of Zelda would be like as a Western.