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A rugged, waterproof compression dry sack designed to significantly reduce pack volume while keeping critical gear fully protected from the elements. Combining a roll-top dry closure with four compression straps and a one-way purge valve, it allows you to compress bulky items like sleeping bags and insulated clothing with maximum efficiency.

Built from durable waterproof materials, the Blocker Compression Dry Sack is ideal for extended trips where space management is key and conditions are unpredictable. The reinforced construction ensures reliability under repeated compression, while the streamlined shape integrates cleanly into your pack system.

Key Features:

Waterproof roll-top closure for secure sealing
Four compression straps for maximum volume reduction
One-way purge valve to expel trapped air
Durable, abrasion-resistant co

20L

Sealline Blocker Compression Dry Sack (outlet)