Expedition dry bag, volume 100 l (26 gal). Extra heavy duty dry bag, with strong lower part, reinforced by rubbing strake. Window or light strap for easy packing, color dot for identification, backpack straps for longer carrying. Closed by velcro + rolling, to be locked on top or on sides. Double locking system on sides (when you need durable lock on side, you can use the non-lose buckle). Designed on river expeditions for river runners.