ezyoutdoor Hydration Bladder 2L Leak Proof Water Reservoir Tactical Hydration Bladder for Camel Pack Hydration Backpack - for Hiking,Cycling,Climbing,Camping PREMIUM QUALITY  The whole hydration bladder is made of premium anti-bacteria material. Taste free, non-toxic, BPA free, SGS and FDA certified. This tested to comply with international safety standards. It wont leave a bad taste in your drink. The water bladder passed pneumatic pressure test, it is pressure-tolerant. Double sealing side technique has greatly improved durablity. Might be the most rigid hydration bladder on the market. DETACHABLE PIPELINE AND BIG FLOW BITE VALVE --- The Water Pipe Is Detachable, Its Much More Easy For Packing When Travelling. There Is a Lock In The Outlet Valve, You Need To Open The Cover, Pull Out The Mouth Piece To Unlock And Bite It, Then The Water Out. Its Safe, There Is No Leak Risks. LARGE OPENING FOR EASY CLEANING & FILLING  Our hydration bladder has one of the largest opening on the market. The big opening makes for easy pouring of water. It is also fairly wide for a hand or bottle brush easily access to the interior hydration bladder. The 4 screw on cap goes on and off easily. For cold water, simply add ice cubes directly from a scoop or refrigerator ice dispenser. Smoothness of the liner prevents germ and lime from adhesion, which promotes health and easy to clean. REMAIN PEFECTLY HYDRATED  This 2L water reservoir can withstand temperatures from -20 to 50 degrees celsius. The tube resists temperature changes in hot and cold weathers. L 14.2'' x W 6.8'' Hydration bladder is compatible with most hydration packs. The tube (0.4 diameter, 40 long) provides a wholesome flow for easy drinking, keeping you hydrated when biking, cycling, hiking, or running! 100% SATISFACTION CUSTOMER SERVICE - Durable and soft anti-microbial mouthpiece for wholesome and effortless sipping. Easily accessible shutoff valve.It is the best choice for outdoor, enough for a day drinking of hiking, cycling, climbing, running or biking.Package Included: 1 x 2L Water Bladder;7-15 business days delivery date in generally with tracking number by USPS.