The Merced Hydration Pack New padded foam comfort back with adjustable, removable, contoured, padded shoulder strap system with chest strap, metal "D" rings, side release buckles and sliding hook-n-loop keepers to keep loose straps in check. We've added 7 rows of Universal straps to the 2 rear compartments allowing for the addition of any pertinent Universal pouches. Hook-n-loop holders will keep your 2.5 liter bladder (included) in place. Right or left side hose exits with elastic straps on shoulder pads for hose control. Double sewn grab handle. Measures 9 1/2"L x 3"W x 17"H. Weighs 1.01 lbs.