This 2-pack of 2L hydration bladders is thoughtfully designed for outdoor enthusiasts, combining comfort, durability, and high performance. Whether you're hiking, cycling, skiing, camping, or traveling, this hiking gear is your reliable hydration companions. Made from premium TPU material that's BPA-free and odorless, they offer reliable, clean hydration and withstand temperatures ranging from -4°F to 122°F (-20°C to 50°C). Each water bladder comes with an insulated hose to minimize temperature changes and maintain a stable water temperature in both hot and cold conditions. Engineered with a professional-grade leak-proof system, the water bag features military-style sealing, including a tightly secured screw cap, double-sealed edges, an auto-lock connector, a manual flow shutoff valve, and a user-friendly 45° angled bite valve. The bite valve rotates 360°, avoiding kinks in the tube and allowing for smooth, comfortable sipping from any angle. Simply bite to drink and release to automatically seal—no dripping. A dust cover is included to keep the mouthpiece clean and hygienic. The wide opening of backpack water bladder makes it easy to fill with water or ice and just as easy to clean by hand. After cleaning, let the water pouch air-dry in cool air. (Please avoid filling with hot liquids or beverages.) Each set also includes two S-hooks, allowing you to conveniently hang the water reservoir on your backpack or gear for quick access on the go. Compatible with most hydration packs, these 2L water storage bladders are ideal for long distances up to 40 miles. Whether you're hiking, trail running, cycling, hunting, fishing, motorbiking, or enjoying music festivals, this set ensures you're always hydrated and ready for your next adventure.