Granite Gear's eVent Ultra-Duty Pack Liner is made from tough heavy duty waterproof fabric with a breathable eVent base panel.
Granite Gear says: eVent Sil Ultra-Duty PackLiners are waterproof roll closure bulk reducing sacks that are ideally shaped to fit inside your backpack.
The extremely waterproof breathable eVent bottom allows air to escape as the sack is roll compressed. We also added an arched rolling stay that helps keep the top of the sack open while loading and shapes an easy to grab handle when sealed.
Granite Gear's eVent Ultra-Duty Pack Liner is made from tough heavy duty waterproof fabric with a breathable eVent base panel which expels the air as you compress the pack liner and close it off using the roll top closure.
We like the fact that the base is shaped like a rucksack cross section - a 'D' shape - which allows it to fit more snuggly inside the pack. All the available sizes are really big, starting at 50-65 litres, this chimes with their heavy duty nature - and are aimed at individuals going on extended treks rather than the lightweight overnighter - for which we'd recommend you buy a lighter pack liner.
- Reviewed by Ultralight Outdoor Gear