The Monsoon GearSlinger is a large size single shoulder pack with over 1600 total cu. in. of total capacity. The single shoulder design allows faster on-and-off, particularly over LBV and body armor and is superior to backpacks in terms of balance and comfort when using a single strap. The quick release padded non-slip shoulder strap has two separate sets of PALS webbing for attachment of accessories. Based on a triangular design, the main compartment contains numerous internal accessory pockets. There is a small internal pocket for iPod or Walkman with rubberized head-phone port. Contents are protected by a padded front cover which is secured by a locking 2" Q.R. buckle while contents are secured by two criss-crossed compression straps. On one side there are three rows of PALS webbing over a flat concealed pocket while the other side has a water bottle pocket capable of holding a 32oz/1L Nalgene bottle. A 1.5" adjustable waist strap provides additional support and security; this waist strap can be stowed away in a built-in small elastic pocket. There are drain hole grommets throughout and three high airflow islands to keep your back cool. The Monsoon is compatible with hydration systems up to 100oz/3L.