Lifestyles SKYN condoms are one of only a handful of available brands of non-latex condoms. These polyisoprene condoms were FDA approved in November 2008 for the prevention of pregnancy as well as for sexually transmitted diseases.
In the US, the Marines are part of the Navy. The Navy is the seagoing part of the US military. They man the ships, and submarines, and fly the jets from aircraft carriers. The marines were originally soldiers specially trained for ship to ship combat back in the days of sailing ships.
The Marine Corps is part of the Department of the Navy. While the Marine Corps is its own branch of the U.S. military, it falls under the administration of the Department of the Navy. This close working relationship dates back to the American Revolution and has been affirmed by several acts of Congress.