We've improved our best selling 3-Day Assault Pack by adding a rubber drag handle, a molded custom back panel for increased comfort, removable, adjustable contoured shoulder straps with metal D rings, a new removable, adjustable padded kidney belt with side release buckle (Tuck 'em away when not in use) and lots of Universal attachment straps. We've also added sliding hook-n-loop keepers to control loose straps, 2 side compression straps, heavy duty 2-way military coil zippers, 2 rear zippered compartments with Universal attachment straps covering both. We've added Universal straps to the side and bottom of the pack so you can add pouches, bedding, etc. Add a hydration bladder and exit the hose in your choice of 3 positions. Bladder not included. Measures 15L x 8W x 19H.