Round Duffle Backpack USA Union Made. Constructed of 200 Denier nylon fabric and features a barrel lock drawstring closure with two adjustable web shoulder straps. It can be used as a backpack, shoulder carry bag, or a hand carry bag. Sizes Available: 10″ wide diameter x 21″ high. Colors Available: Red, burgundy, orange, yellow, gold, kelly green, hunter green, royal blue, navy blue, purple, tan, brown, white, gray, black.