Camelbak Velocity Hydration Backpack 2.5L Bladder (Missing Lid) Black Gorpcore Excellent condition. Not sure if there is supposed to be a weight to hold the flap down- there's space for it, but nothing is in there. No rips or stains. The CamelBak Velocity Hydration Backpack is a versatile and lightweight option for hikers looking to stay hydrated on the go. With a zip closure and multiple pockets, this black backpack is designed for ease of use and convenient storage during outdoor adventures. The included 2.5L bladder is perfect for keeping fluids at the ready, although note that the lid is missing. Overall, this gorpcore hydration pack is a practical choice for anyone hitting the trails.