Waterproof packsacks are plentiful on the market, yet the Big River Dry Bag takes it a step further. First, the oval shape stands out, which also serves a practical purpose, as it prevents the packsack from rolling away. Another advantage is that it allows for better and more space-efficient stacking. The six incredibly sturdy side loops enable secure attachment of the packsack to a bike, cart, or boat, and additional gear can also be fastened externally. The extremely robust, abrasion-resistant 420D nylon fabric is impervious to weather and rough handling – the material is virtually indestructible. Additionally, it is waterproof due to the TPU lamination – a water column of 10,000 mm makes a real statement. Like all packsacks with a roll closure, the Big River Dry Bag is waterproof when rolled down three times, and D-rings on both sides of the sturdy field-repair buckles allow the sack to be locked with a padlock and carried with a separately available shoulder strap. Another extremely helpful detail is the white interior color of the packsack, as it significantly eases rummaging and searching for items.