These are super heavy duty, 56 liter bags, made to be used in conjunction with the ILBE Pack or the Assault pack. These Seal Line® dry bags were designed as a water tight liner to keep the contents of your pack dry. It is complete with purge valve so you can compress the air out of the bag to save space. Turned inside out they are fluorescent orange so they can also double as a search and rescue marker. Unrolled empty liner measures 36” x 20”. These bags would also be great for all who are water sportsmen, boaters and fisherman. Great for kayaking! NSN: 8465-01-560-6727. Unused Condition.