Leak-Proof System: Rest Assured That Your Hydration Reservoir Will Not Leak Thanks To The Advanced Sealing Technology, Keeping You Hydrated Without Interruptions. Large Opening: The Wide Opening Facilitates Effortless Cleaning And Quick Drying, Ensuring That Your Hydration Bladder Remains Fresh And Ready For Your Next Adventure. Versatility: Compatible With Most Hydration Backpacks, This Bladder Is Perfect For A Variety Of Outdoor Activities, Including Hiking, Running, And Cycling. Sturdy Drink Tube Cover: The Insulated Tube Provides Strong Protection Against External Elements And Maintains The Optimal Temperature Of Your Water. Military Grade Sealing: Experience The Peace Of Mind That Comes With A Hydration Bladder Engineered To Stand Up To The Challenges Of The Outdoors. Dive Into Your Outdoor Adventures With Confidence, Knowing That Your Hydration Needs Are Taken Care Of. Our 3L Hydration Bladder Is Designed For The Active Lifestyle, Combining Functionality With Reliability. The Large Opening Makes Cleaning And Filling Effortless, While The Leak-Proof System Ensures No Surprises Mid-Adventure. Whether You're Exploring New Trails Or Pushing Your Limits In Sports, Stay Hydrated And Refreshed With A Bladder That's Built To Last. The Insulated Tube Offers Additional Protection And Convenience, Keeping Your Water Cool Even Under The Harsh Sun.