Bargain Outfitters offers the Travelon Packaway 36" Duffle Bag
in Black for $14.99
for shipping. That's the lowest total price we could find by $46. Features include 100% polyester construction, webbed carrying straps with padded handle, front zip pocket, detachable shoulder strap, rubber underside guards, and more.
Of note, it's also available in 25" and 30" in Black or Grey for the same price.