Award-winning waterproof & ultralight compression dry sack.

NEW FOR 2018 Waterproof, ultralight packing organization at its finest, our new BlockerLite Compression Dry Sack protects essential backpacking and hiking gear like clothing and sleeping bags, while the Continuous Compression system reduces overall volume for maximum packing efficiency.

• Ultralight: Featherweight 20D silicone- and polyurethane-coated nylon delivers waterproof protection while barely tipping the scales.
• Smarter compression: Unlike conventional systems that pull against seams, our Continuous Compression system encircles the sack to minimize seam strain, maximizing durability for dependable protection.
• PurgeAir™-equipped: Our 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.
• Waterproof closure:&n