- STAY HYDRATED ON THE GO: This hydration pack features a 2L EVA water reservoir, ensuring you have ample hydration during your sports activities. The large opening allows for easy cleaning and filling with ice, while the on/off valve controls water flow to prevent leaks. Enjoy a consistent and refreshing water supply when you need it most. - PERFECT FIT FOR EVERYONE: Adventure knows no size restrictions. With its multi-adjustable straps, this hydration pack fits a wide range of users, from adults to teenagers. Choose from a variety of classic colors to suit your style. - ULTRA LIGHTWEIGHT & SOFT: Weighing only 140g, the soft, quick-drying mesh polyester material is designed for comfort and portability. The splash-proof nylon outer fabric protects against spills, while reflective strips on both the front and back enhance visibility for added safety. - THREE COMPARTMENT STORAGE: This versatile hydro backpack doubles as a vest and offers ample storage options. The two-layer main compartment is spacious, while the left front pocket securely holds your phone. The right front pocket features two drawstring pockets for easy access to essentials. Use Cases: 1. Ideal for hiking, where easy access to water and quick storage for essentials are crucial. 2. Perfect for cycling, providing hydration without compromising on comfort or visibility. 3. Great for running, ensuring you stay hydrated while keeping your belongings organized and secure.