The built-in front pocket secures valuables, the upper pocket is designed for sunglasses, and lower pockets provide easy access to items. Helmet storage is conveniently located between the outer and middle pockets, while the bottom features a dedicated outdoor tool pocket. From the manufacturer Bottom Toolkit The bottom of the hydration pack has a separate compartment with a large opening, suitable for storing a variety of portable outdoor tools Adjustable Shoulder Strap Adjustable chest and waist straps with built-in whistle on chest strap. Suitable for most body types Tool Buckles The top of the hiking backpack has a tool holder for hanging a handy compass, utility knife, portable fire starter, etc. Reflective Strips Reflective strips on the front and shoulders of the camping backpack allow you to be easily spotted at night, making it a practical and stylish design. The built-in front pocket secures valuables, the upper pocket is designed for sunglasses, and lower pockets provide easy access to items. Helmet storage is conveniently located between the outer and middle pockets, while the bottom features a dedicated outdoor tool pocket. Hands-Free Leakproof Water Bladder:Stay hydrated on the go with a 2-liter bladder and bilateral hose outlets (BPA-free soft flask). The large opening design of the bladder ensures easy filling and cleaning. The separate insulated compartment provides hours of cooling with ice packs. The bladder is replaceable and supports up to 3 liters. High-Flowing Hose Design:To prevent water leakage when not in use, we've designed a push-on straw tip of hydration backpack. Effortless Outdoor Experience:Ideal for hiking, cycling, or skiing, and with a chic look perfect for music festivals, our 2-pound water backpack offers comfort and stability. It fe