Military Grade Durability : Constructed from High-Strength Tpu Material for Unmatched Durability and Hydrolysis Resistance, Perfect for Extreme Outdoor Activities. Leak Proof Technology : Utilizing Double Welded Edge Technology, This Water Reservoir Prevents Leaks and Maintains Water Pressure, Ensuring Your Beverages Stay Safe During Adventures. Bpa Free & Antibacterial : Our Hydration Bladder Is Completely Free of Harmful Chemicals, Making It Safe for Regular Use While Also Featuring an Antibacterial Protective Cover. Soft Bite Valve for Comfortable Sipping : Designed for Easy Operation and Safe Use, the Soft Bite Valve Allows for Controlled Water Flow Without Leaks, Even When Closed. Easy Cleaning & Maintenance : Thanks to the Large Diameter Opening, Cleaning and Drying Are Effortless, Keeping Your Reservoir Fresh and Ready for Your Next Outdoor Pursuit. Embark on your next adventure with confidence, knowing your hydration needs are met with our Military Grade Hydration Bladder. Engineered with TPU material for unparalleled strength and safety, this Water Reservoir is your companion through all terrains.