The Monsoon GearSlinger is MAXPEDITION's large size single shoulder pack with over 1,600 total cubic inches of capacity. Based on a triangular design, the main compartment contains numerous internal accessory pockets. Contents are protected by a padded front cover which is secured by a locking 2-inch 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 sports a water bottle pocket capable of holding a 32 ounces/1 liter Nalgene. There are drain hole grommets throughout and three high airflow islands to keep your back cool. The Monsoon is compatible with hydration system up to 100 ounces/3 liters reservoir.