Includes Messenger over the shoulder strap option included Water-jet precision cut with closed cell foam to resist water and dust infiltration. GPC custom foam is housed in a custom designed and manufactured GPC backpack High quality fabric made of 600 Denier Roomy secondary compartment with gear organizer Ergonomic structure supported by aluminum back stays and Sternum strap Front panel with multiple MOLLE/PALS pane Adjustable closed-cell foam shoulder straps and waist straps Tuck-away shoulder and waist strap storage Expandable main compartment with zippered mesh pockets Velcro name-tape and patch holders Foam Made in the USA, Shipped Worldwide Remember! - If it doesn't say GPC in the foam, it isn't guaranteed!