SAFE MATERIAL: Our water bladder is made of high quality flexible antibacterial material. This means the water bladders are tasteless, odorless and BPA free. Perfect for carefree hiking, running, biking, camping, or other outdoor adventures. FUNCTIONAL DESIGN: Measuring 14.2"L x 6.8"W and weighing just 2.20kg when fully loaded, it is the ideal outdoor companion. The 100 cm long detachable hose, the automatic locking system and the soft mouthpiece ensure easy and comfortable use. Extra Large Opening: Thanks to the extra large screw cap, the water bladder can be easily filled with water. Perfect for filling with ice cubes or a variety of sports drinks. This makes cleaning and drying very easy. EASY TO CLEAN: In addition to the large opening, the detachable hose allows easy and simple cleaning - just rinse, empty and flip. Fits in every backpack: the hydration bladder system can be fitted to any backpack and is therefore ideal for the outdoors and sports, and its two liter capacity ensures you are always hydrated.