Large waterproof expedition packsack with roller closure to transport bulky equipment. This model is also suitable as a packsack for trekking rucksacks during transport in aircraft, trains or cross-country vehicle. The X-Tremer is a flexible alternative to rigid transport barrels or boxes which can be folded up very small when empty. The anatomically formed shoulder straps with sternum strap and reflective stripes ensure a proper and comfortable fit. Sturdy plastic D-rings serve to lock the dry bag with a padlock or to hook it to a snap hook, hanger, etc. Expedition stuff sack for voluminous equipment. For heavy duty purposes, e.g. as a cover for trekking backpacks. Three D-rings for additional anchoring, abseiling or safeguarding with a lock. Better than transportation barrels which are too bulky, especially when empty. Small packing volume. Can be carried comfortably with padded shoulder straps. Easy to clean inside. Caution: The roll closure must be rolled at least four times before the bag is fully submerged under water. Size: 82" height x 39" diameter. Volume: 109 liters. Weighs: 40.6 ounces.