Featuring a waterproof valve that purges trapped air, the versatile Blocker PurgeAir Dry Sack resists ballooning to help maximize use of space within a pack or bag. Plus, the fully waterproof construction ensures essential contents are protected.

• 70D polyurethane-coated nylon
• Lightweight 70D polyurethane-coated nylon materials are tough and resilient. More durable and versatile, these materials are great for all-around use with confident waterproof protection.
• Unique and waterproof PurgeAir valve vents trapped air, helping the sack compress further after being sealed, and is both more durable and more reliably waterproof than waterproof/breathable fabric membranes.
• Roll-top closure features a wrinkle-free stiffening strip to ensure a secure seal when closing the dry sack.
• Fully welded seams result in stronger and more durably protective construction compared to sewn-and-taped seams.
• PackTight™ packing system sacks feature flat-sided, rectangular shapes that nestle closely together, packing 20% more efficiently than rounded sacks for easy, space-saving organization.
• Weight: 3.3 oz.
• Width: 5.5 in.
• Length: 10.4 in.
• Height: 18.8 in.
• Volume: 30L
• PVC-Free
• Imported