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Blocker 5-30L Compression Dry Sack

4.75 out of 5 stars
20 Reviews
Current price: $27.69 - $41.19 Original price: $54.95
25% off



Blocker Compression Dry Sack

Carry your down sleeping bag, extra clothing layers, or outdoor essentials in the ultra-lightweight, space-saving design of the SealLine Blocker Compression Dry Sack. This dry sack features lightweight, fully waterproof construction to keep your gear dry without adding excessive bulk to your pack or kayak storage area.

It's packing a PurgeAir valve that releases excess air trapped inside, so you're not carrying a bonafide balloon while backpacking or paddling long distances. Additionally, it features SealLine's Continuous Compression System, which tightens down uniformly to reduce carrying bulk, but without exerting tons of pressure on delicate seams that tend to break easily.


  • Compression dry sack with PurgeAir valve to release air
  • PurgeAir valve keeps it from ballooning out in your pack
  • Fully waterproof design provides a dry place for gear
  • Roll-top closure provides a secure, water-tight seal
  • Continuous Compression cinches without breaking seams
  • PackTight design with flat sides to reduce bulk
  • Item #CAS00DC
70D nylon, PU coating
5L (305cu in), 10L (610cu in), 20L (1220cu in), 30L (1831cu in)
Continuous Compression System
fully waterproof design
roll-top closure
[5 L] 3.5 x 6.4 x 11.8 in, [10 L] 4.3 x 8.2 x 14.1 in, [20 L] 5.5 x 10.4 x 18.8 in, [30 L] 6.2 x 12 x 22.8 in
Claimed Weight
[5 L] 3.5oz, [10 L] 4.4oz, [20 L] 5.9oz, [30 L] 6.9oz
Manufacturer Warranty