Swiss Gear Bern Midsized Hiking Pack (Grey/Black/Red/White) Adjustable sternum strap with integrated whistle buckle Padded, contoured adjustable shoulder straps with shock absorption, padded adjustable back panel with lumbar support 2 front pockets with organizer for hiking gear, detachable GPS pocket on shoulder strap 2 side mesh stash pockets hold water bottles or other quick access items Hydration compatible for 2 liter reservoir (not included)