This large sleeve will hold a single 3-litre bladder or two 2 litre bladders. Closes via two adjustable Fastex clips and dues to its size it can also be used for long item storage. Designed to mount on the back of larger platforms, such as the MVP Long or Chest Rig Back. Includes drainage grommets at the bottom for water operations and external attachment points for smaller pouches. Requires four MOLLE columns for attachment.