USMC - SealLine Sleep System Waterproof Compression Sack - Coyote

Genuine USMC SealLine Waterproof Sleep System Compression Sack - Coyote

Manufactured in the USA by SealLine for the US Marine Corps, this heavy-duty waterproof compression sack is engineered to keep your sleep system and critical gear completely dry in the harshest maritime and field environments. Originally issued to protect and compress the USMC 3-Season Sleeping Bag and Bivy Cover, this dry bag integrates seamlessly into the ILBE rucksack system or any commercial backpacking setup.

Constructed from durable 210-denier nylon with high-frequency seam-welded construction, this sack provides total waterproof security. It features a classic roll-down top with a secure buckle closure. What sets this bag apart from standard dry bags is its built-in one-way air purge valve. This allows you to forcefully expel trapped air without letting water in. Combined with the integrated vertical compression straps, you can shrink down bulky clothing and sleeping bags to a fraction of their original size, maximizing the space in your pack.

Key Features & Specifications:

• NSN: 8465-01-574-4003
• Color: Coyote Brown
• Manufacturer: SealLine (Cascade Designs)
• Material: Heavy-duty, waterproof 210-denier nylon with seam-welded construction
• Dimensions: Approximately 27" Height x 7.5" Width (unrolled)
• Weight: Approx. 8 oz (0.5 lbs)
• Closure: Roll-top seal with quick-release buckle
• Compression: Features a hands-free air purge valve and durable webbing compression straps to minimize bulk
• Origin: Genuine US Military Issue (USMC), Made in the USA

Ideal Uses:

• Backpacking and hiking in wet climates
• Kayaking, canoeing, and overlanding
• Compressing bulky sleeping bags and cold-weather clothing
• Bug-out bags and emergency preparedness kits

Note on Condition: Please select your desired condition from the dropdown menu. As these are genuine military surplus items, "Used" conditions may show typical signs of field use, such as dirt, fading, scuffs, or small professional field repairs, but they will remain fully functional and waterproof.