Camo Hydro Backpack with 2-liter Bladder (Chest & Waist Straps) Convenient back pack with 2 liter big mouth TPU bladder with leak proof cap 100% odorless, tasteless polyurethane bladder ensures water quality & taste Easy to clean hose & bladder. Water consumption controlled by bite valve A perfect comfortable fit with ventilated & padded back and shoulder straps, chest and waist straps for a super fit while biking, climbing etc. Comes equipped with an adjustable loop, small zippered side pocked for phone, straps and loops on shoulder pads, main zippered compartment also has a velcro flap over it for quick excess when unzipped