Climbing, biking or hiking - a good drink supply is a must. The Hermetic hydration bladder is very easy to fill and closes immediately and fully automatically. Thanks to the patented closure technologies, easy handling is guaranteed. The hydration bladder has three wide opening magnetic rows that seal automatically and hermetically and provide maximum leakage resistance. The additional snap closure on the pocket flap can be operated with one hand and prevents unwanted opening of the hydration bladder in the backpack during activities. Details: large opening for easy filling and cleaning. Maximum tightness thanks to patented technology. No manual locking, sliding or clicking. BPA free and tasteless material (TPU). Volume: 1500 ml or 2500 ml. Material: