This versatile, rugged backpack is NTOA reviewed and approved and has quickly become a customer favorite! Includes 100 oz. BLACKHAWK!® Hydration System Drink system protected by Microban® antimicrobial technology Bite Me® bite valve and patent-pending quick-disconnect system Twin compartments for extra storage Large compartment has internal pouch for radio packs and three antenna ports with flaps Over 100 external S.T.R.I.K.E.® webbing attachment points Anodized D-rings and quick-cinch buckles for compatibility with 3-Day accessory pouches Reinforced waist belt with additional attachment points Padded, contour-fit shoulder straps with sternum strap Rubber drag handle Metal grommet at bottom of pack for drainage