USGI Military USMC Waterproof Compression Stuff Sack Dry Bag SealLine For Sale

Genuine USMC Waterproof Compression Stuff Sack - Large

NSN: 8465-01-608-7507
Manufacturers: SealLine (Cascade Designs) & Skilcraft

Product Overview

Maximize your pack space and protect your vital gear from the elements with this authentic U.S. Military Waterproof Compression Stuff Sack (Large, Type VI). Originally issued to compress and waterproof the military modular sleep system, this heavy-duty dry bag is an essential upgrade for backcountry backpacking, camping, prepping, and tactical loadouts.

Built by industry leader SealLine, it features a traditional watertight roll-top closure paired with a one-way air purge valve. Once your gear is loaded and the top is sealed, simply kneel on the bag to force all trapped air out through the valve. The exterior flap and dual strap buckles then lock everything down, compressing bulky gear to a fraction of its original size.

Key Features & Design

• Authentic Military Surplus: Genuine U.S. military issue, built for extreme field conditions and durability.
• Watertight Seal: Roll-top closure with a secure snap buckle keeps moisture, dirt, and debris completely out.
• Air Purge Valve: One-way valve near the base allows for maximum air evacuation (vacuum effect) without letting water back in.
• Extreme Compression: Exterior cap flap and adjustable webbing straps hold the sack securely in its fully compressed state inside your rucksack.
• Ideal For: Military sleep systems, bulky sleeping bags, heavy cold-weather clothing, or tarps.

Specifications

• NSN: 8465-01-608-7507
• Size: Large (Type VI)
• Material: Heavy-duty, abrasion-resistant waterproof material
• Color: Black

Use & Care Instructions

• Fold gear to fit the long axis, roll top smoothly at least 3 times, and connect buckle.
• Wrap exterior flap around sack, connect the flap straps, kneel to purge air, and tighten straps.
• Hand wash with mild soap and warm water. Hang and air dry only.
• Note: Do not store your sleep system tightly compressed inside this sack long-term (in garrison), as it can degrade the loft of your gear.

A Note From Forest City Supply

This is a multi-quantity listing. The photos provided are representative of the inventory. Because this is genuine military surplus, the exact item you receive may vary slightly in cosmetic wear or production markings, but all are fully functional and inspected prior to shipment.