The Gregory Long Haul Duffel is made from bombproof 22-ounce Shelter-Rite® and with a trapezoidal shape that stays upright. The Gregory Long Haul Duffel is made from bombproof 22-ounce Shelter-Rite® and with a trapezoidal shape that stays upright. Reinforced main handles and haul handles on each end make it easier to carry or drag. Perfect for the person who expects a lot from their duffel, these are the toughest expedition duffels available.