Wolfman Expedition Dry Duffel Bag Wolfman went all out on these duffels and came up with a great series of roll-top, 100 waterproof bags, designed specifically for motorcycle use. Wolfman upgraded the fabric to 22oz vinyl for the body and incredible 34oz for the sides and uses a waterproof webbing for the top opening to prevent water wicking into the bag. Wolfman also uses a new innovative design which allows the bag to easily expand, making loading and unloading a breeze. Features 100 Waterproof radio frequency welded seams Ultra tough 22oz vinyl body and 34oz vinyl sides (For years of use.) Simple effective roll top design 4 compression straps, two over the body, one at each end Deluxe carry handle Removable shoulder strap and two mounting straps included Made in the USA Dimensions and Capacity Small Expedition Dry Duffel Width 20 Height 11 (with the ability to get taller) Front-to-back 11 Capacity 33 Liters+ Medium Expedition Dry Duffel Width 24 Height 11 (with the ability to get taller) Front-to-back 11 Capacity 40 Liters+ Large Expedition Dry Duffel Width 28 Height 11 (with the ability to get taller) Front-to-back 11 Capacity 47 Liters+ Note Product photos show 2 D-rings on each side at the bottom of the bag below the Wolfman logo, however production versions of the bags feature only 1 D-ring per side.