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SealLine - BlockerLite Compression Dry Sack

Availability: Out of stock

Stock #: H83GZ-
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Waterproof, ultralight packing organization at its finest, SealLine's 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, SealLine's Continuous Compression system encircles the sack to minimize seam strain, maximizing durability for dependable protection.
  • PurgeAir™-equipped: The 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: Roll-top closure features a wrinkle-free stiffening strip to ensure a secure seal when closing the dry sack.
  • Durable construction: Fully welded seams result in stronger and more durably protective construction compared to sewn-and-taped seams.
  • Efficient-Packing: 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.


5 LTR 10 LTR 20 LTR





Weight (Standard)

2.8 oz

3.4 oz

4.3 oz

Weight (Metric)

0.08 kg

0.09 kg

0.12 kg

Width (Standard)

3.5 in

4.3 in

5.5 in

Width (Metric)

9 cm

11 cm

14 cm

Length (Standard)

6.4 in

8.2 in

10.4 in

Length (Metric)

16.5 cm

21 cm

26.5 cm

Height (Standard)

11.8 in

14.1 in

18.8 in

Height (Metric)

30 cm

36 cm

48 cm

Volume (Standard)

305 cu. in

610 cu. in

1220 cu. in

Volume (Metric)

5 liters

10 liters

20 liters










20D silicone/polyurethane-coated nylon

20D silicone/polyurethane-coated nylon

20D silicone/polyurethane-coated nylon

Country of Origin

Made in China

Made in China

Made in China

Additional Information

Year Spring 2018
Intended Use Dry Bag, Paddling/Water