THE SUBMARINER - NAVY,Submariner Sweater Ecru (Natural) / X-Large (46,Experience Wool - Recently the U.S. Navy reached out to the American Sheep Industry Association for help with updating their classic Submarine Sweater. Previously made of acrylic material, the American Wool Council,Submariner Jumper Navy,Submariner Sweater Ecru (Natural) / X-Large (46,