Feature●LARGE OPENING & EASY CLEANING: 3.5-Inch wide opening of the bladder ensures easy refilling, adding ice cubes, cleaning and drying. The smooth inner wall provides a healthy and fresh drinking experience;●Leak-Proof & ON/OFF Valve: Simply bite the mouthpiece to drink. Soft mouthpiece with easily accessible ON/OFF valve prevents leakage. Conveniently control the water flow by biting, when not bite, the water will not leak out. Store neatly in fridge or icebox without tangling hose;●BPA-FREE & Odorless: The hydration reservoir is made of premium material. Taste free,BPA free, SGS certified. This tested to comply with international safety standards. It won’t leave a bad taste in your drink;●Detachable Tube & Insulated Sleeve: For better cleaning and drying, the tube is designed to be detachable and quick-release. Insulated sleeve provides insulation and protection, the mouthpiece cover on the bite valve keeping out dust and sand;●One-Year Warranty: Perfect size to be compatible with most hydration backpacks. Every hydration bladder comes with Gelindo’s one-year warranty. If you are dissatisfied with the product, please contact us directly, we will give you a satisfactory solution within 24 hours.[Black-2 Liter][Green 3l][blue][Black-2.5 Liter][2L-Green]Description