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USMC SealLine MACS Sack


(Out of stock)

  • USMC MACS Sack - Flat USMC MACS Sack - Flat

Quick Overview

The USMC SealLine MACS Sack is a high performance waterproof dry bag developed for US Marines. This dry bag was designed and manufactured by Cascade Designs who created the combat tested and battle proven SealLine compression sack for the USMC 3-Season Sleep System. Capable of keeping your essentials dry and secure this handy dry bag will also float if it falls into water.

Availability: Out of Stock



The USMC SealLine MACS Sack is a high performance dry bag that should be part of any outdoor gear enthusiasts arsenal. This bag is capable of protecting your most important items from the rain no matter how strong the storm is and it has an extremely low profile for space concerns. You can put your electronics or other gear that can be ruined by the rain into this bag, seal it, and you will have no concerns to worry about while on the move.

The US Marine Corps has assigned the MACS Sack a Level 2 water resistance rating. This means that it will protect your gear during heavy rain and can also withstand brief submersions in the water. Should your MACS Sack drop into the water it is designed to float giving you plenty of opportunity to retrieve it without needing to worry about damage to the contents. Combat tested, battle proven, and Marine proof this dry bag is perfect for all users.

  • Authentic US Marine Corps Issue Dry Sack
  • Compact, Rugged, Lightweight Design
  • Integrated Air Purge Valve
  • Dimensions: 7" x 13" (Approximate)
  • Capacity: 540 Cubic Inches (Approximate)

Additional Information

SKU 8465-01-542-7688
Manufacturer US Army Surplus
Free Shipping No
Construction Waterproof
Condition Surplus Used
100 1 100 0
  1. Great to keep clothes dry review by 53gr on 5/10/2017

    I use one of these to store spare clothes in. Keeps them compact and dry.

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