Check the listing for details. CamelBak Velocity Trail Hydration Backpack Black Cycling Running Hiking Pack. Color: Black, Condition: Pre-owned. Listed at 24.99 USD. Brand: CamelBak Model: Velocity Trail hydration backpack with integrated reservoir system. Color: Black with contrasting mesh side panels and black hardware. Design: Compact trail backpack with main zip compartment, secondary upper zip pocket, and front vertical zip pocket with CamelBak logo graphic. Features: Dual stretch mesh side pockets, padded breathable mesh back panel, adjustable padded shoulder straps, sternum strap, and waist strap for added stability. Additional details: Hydration bladder and drinking tube with bite valve included as shown; reflective Velocity Trail patch on lower front. Use: Suitable for cycling, running, hiking, and other outdoor or endurance activities where hands-free hydration is useful.