Honbo Hydration Water Reservoir 2 Liter Water Bag for Backpack System Bicycling Camping Hiking 1.BPA-FREE & FDA APPROVED: Food-grade premium quality anti-bacteria materials. Thick TPU bladder material is pressure-tolerant(60kg and wear-proof. Manufactured with leak proof sealing technology. 2.SOFT MOUTHPIECE: Durable and soft anti-microbial mouthpiece for wholesome and effortless sipping. Easily accessible shutoff valve. 3.LARGE OPENING FOR EASY CLEANING: Inner surfaces easily accessible for easy cleaning and drying. For cold water, ADD ICE CUBES directly from a scoop or refrigerator ice dispenser. 4.Double rectangular hole on the bag and hanger on the opening for hydration backpack replacement water reservoir or easy hanging 5.Total Capacity: 2L; Size: 36cm*18cm