Satisfy your adventurous spirit: This lightweight and comfortable hydration backpack is the perfect companion to keep you hydrated during running and cycling. 3-liter hydration backpack: BPA-free, tasteless, and odorless. Durable tangle-free mouthpiece and padded push-button valve; just bite to open the flow; two large openings for easy ice pack insertion and cleaning. Reliable quality: This hydration backpack is made of strong 800D Oxford cloth and nylon lining, tear-resistant and abrasion-resistant. Durable plastic buckles with exceptional rigidity. Lightweight and comfortable: Weighing only 360 grams, it features adjustable shoulder straps and an ergonomic design for improved back comfort. A soft, breathable, padded back panel keeps your back dry and comfortable. Essential pockets: This hydration backpack is designed to carry essential drinking water and a small amount of gear. A back pocket securely stores all your necessities. EVA hydration backpack - This 3-liter hydration backpack is made of high-quality BPA-free materials, ensuring safe and healthy hydration without harming your health. Versatile and suitable for a variety of outdoor activities – whether you enjoy running, cycling, hiking, or other activities, this hiking water backpack can meet all your outdoor adventure needs and is the perfect companion for every outdoor enthusiast.