Submariner Sweater Navy Blue / Small (40,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,Sweaters--Port Authority: SUBMARINE VETERAN, DOLPHINS Pride Runs Deep,Us navy store submarine sweater,100% Merino Wool Submariner Sweater in Black - The Chunky Royal Navy Roll Neck