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SealLineBlocker Compression Cinch Sack

SealLineBlocker Compression Cinch Sack

$34.95 - $44.95

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Blocker Compression Cinch Sack

Designed for long-distance backpackers and outdoor adventure addicts, the SealLine Blocker Compression Cinch Sack is an ultra-compact companion for stuffing your sleeping bag, extra clothes, protective outerwear, or camping essentials. This particular cinch sack is water-resistant, meaning it'll keep your gear dry from passing showers and light splashes, but it's certainly not fully waterproof like comparable dry sack offerings.

SealLine's Continuous Compression straps cinch tightly to minimize overall bulk inside your pack, but without exerting excessive pressure on seams that are prone to blowing out. The drawcord closure isn't as secure as a dry bag's roll-top, but it does offer quick retrieval and stashing of items on the trail when time is of the essence. Welded seams increase its durability, so you'll be able to use it for years to come. Plus, you'll find the flat-sided construction saves 20 percent in space when compared to circular-shaped sacks.


  • Compression sack reduces carrying bulk on the trail
  • Lightweight design with drawcord closure for easy access
  • Continuous Compression reduces bulk without breaking seams
  • Water-resistant nylon repels light showers and splashes
  • Flat-sided design packs down more efficiently
  • Welded seams ensure robust durability
  • Item #CAS00DG

Tech Specs

70D nylon, PU coating
5 L, 10 L, 20 L, 30 L
Continuous Compression straps
water-resistant fabric
drawcord 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] 2.7 oz, [10 L] 3.3 oz, [20 L] 4.5 oz, [30 L] 5.5 oz
Recommended Use
backpacking, flatwater paddling
Manufacturer Warranty

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