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. The XL or Portage Packliner is designed to fit our Superior One portage pack.

Features:
• Forms a block shape when compressed that fits perfectly in your pack
• Simply roll to compress. Air is forced out the eVent bottom.
• Arched rolling stay keeps Bloc open while loading/unloading and forms an easy to grab handle when sealed
• Designed to be used inside your pack and not as a drybag or haulbag

MD:
Weight: 5.75oz/ 163grams
Dimensions: 11.5x18x38.5"/ 29x46x98cm
Fits Packs: 3000-4000ci/ 50-65L

LG:
Weight: 7oz/ 199grams
Dimensions: 12.5x20x46.5"/ 32x51x118cm
Fits Packs: 4000-5500ci/ 65-90L

XL Portage:
Weight: 7.4oz/ 210grams
Dimensions: 12.5x23x38.5"/ 32x58x98cm
Fits Packs: 6000-7400ci/ 98-120L