Eagle creek ready go pack 30l description this 30l all ways secure tm backpack is not only ultra light but is built with a sleeve that can be used for your laptop or hydration bladder so it can be both your daily commute bag and your bff in the backcountry moisture wicking backpack straps tuck away waist belt and sternum strap and with bottoms up tm compression for compression and optimal weight distribution features anti theft lockable self repairing zippers on main compart