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Why We Like It

One of the more annoying (and potentially embarrassing, depending on the contents of your pack) things that can happen on the trail is having to dump your entire pack out after a long day of hiking in order to find that extra pair of socks you need. Keep your soft items organized and compressed, and save your hiking buddies from having to see everything you’ve packed.


SealLine’s lightest compression sack, the new splashproof and ultralight BlockerLite Compression Cinch Sack not only saves space, it saves weight for thru-hikers and gram counters. The ultra-convenient drawcord opening makes it fast and easy to access, all while supplying a high level of splashproof protection.

  • Ultralight: Featherweight 20D silicone- and polyurethane-coated nylon delivers splashproof defense 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.
  • Securable, easy access: Drawcord closure supplies speedy, hassle-free access to contents while the lockable cord lock ensures the sack stays cinched tight.
  • 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.


  • Weight 2.5 oz
  • Width 4.3"
  • Length 8.2"
  • Height 14.1"

BlockerLite Cinch Compression 10L Reviews