Waterproof packsacks are abundant on the market, yet the Big River Dry Bag takes it a step further. First, its 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; additional gear can also be secured outside. The extremely robust, abrasion-resistant 420D nylon fabric is impervious to the elements and rough handling – the material is simply indestructible. Additionally, it is waterproof thanks to the TPU lamination – with a water column rating of 10,000 mm, it makes a real statement. Like all packsacks with a roll closure, the Big River Dry Bag is waterproof when rolled down three times, and on both sides of the sturdy field-repair buckles, there are D-rings for locking the sack with a padlock and for attaching a separately available carrying strap. Another extremely helpful detail is the white interior color of the packsack, which significantly eases rummaging and searching.