330D Nylon exterior is lightweight, water resistant and tough enough for your daily grind; Stash your helmet, boots, jacket, or anything you can think of in the expandable front pocket - or cinch it down when you're running light; Expandable pocket faced with durable 500D MOLLE that stands up to heavy loads without sagging; Fully loop-lined EDC compartment behind the front panel for stashing a firearm or other gear you need quick access to by attaching hook-backed holsters or other compatible accessories; YKK locking zippers on the main compartment and EDC slot keep your gear secure; Stretchable side pockets fit more than just water bottles - use side compression straps to secure larger kit, like tripod, compact rifle, or hiking poles; Comfortable shoulder straps feature carabiner attachment points, comms or hydration routing, and a roomy stretch pocket for large smartphones or other gear; Inside Main compartment reveals double-layer, loop-lined laptop sleeve with layers of organization - translucent mesh pockets, admin slots, stretch pockets, and loop elastic; Compatible with Premier Body Armor insert; Waistbelt for heavier load carry