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SealLine Blocker Compression 5L Dry Sack

sku# 148529
SealLine - Blocker Compression 5L Dry Sack
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Product Info

Combining compression and full-on waterproofing, the SealLine Blocker Compression 5L Dry Sack is so lightweight it doesn't quite seem real. Fully welded seams combine with a watertight seal to keep all your gear dry, and the four-pronged compression attack is no joke. With a valve to expel any unwanted air, you won't be lugging around any extra volume--just the essentials.

Product Details


70D Polyurethane-Coated Nylon


3.5 x 6.4 x 11.8" / 9 x 16.5 x 30 cm

Weight3.5 oz / 100 g


Waterproof ClosureRoll-top closure features a wrinkle-free stiffening strip to ensure a secure seal when closing the dry sack.

Versatile MaterialsLightweight 70D polyurethane-coated nylon materials are a tougher, more resilient cousin to the ultralight BlockerLite materials. More durable and versatile, these materials are great for all-around use with confident waterproof protection.

Smarter CompressionUnlike conventional systems that pull against seams, the Continuous Compression system encircles the sack to minimize seam strain, maximizing durability for dependable protection.

PurgeAir™ ValveThe unique and waterproof PurgeAir valve vents trapped air, helping the dry bag compress further after being sealed, and is both more durable and more reliably waterproof than waterproof/breathable fabric membranes.

Durable ConstructionFully welded seams result in stronger and more durably waterproof construction compared to sewn-and-taped seams.

Efficient PackingPackTight™ packing system sacks feature flat-sided, rectangular shapes that nestle closely together, packing 20% more efficiently than rounded sacks for easy, space-saving organization.


  • Material: Nylon, Polyurethane (PU)
  • Bag Volume (L): 5
  • Bag Volume (cu in): 305
  • Weight (g): 100
  • Warranty: Limited Lifetime



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