Unigear Hydration Backpack with 2L Water Bladder, Red/Grey Unigear Hydration Backpack in red and grey, perfect for hiking, running, or cycling. This pack includes a 2L water bladder with a drinking tube and bite valve for easy hydration on the go. Features a lightweight design with adjustable straps, a front bungee cord for extra storage, and multiple zippered compartments for essentials. Like new condition with some light signs of use but no major flaws. Based on the mouthpiece, tubing and bladder it appears to never have been used Ideal for outdoor adventures and endurance sports.