Paladineer 2L Air Bladder Hydration Bladder Reservoir Blue Garantee for your Health: Taste free, in compliance with the LFGE test. Please be assured to buy. Anti-microbial addititives are added to efficiently restrain the growth of bacterial and extend the duration of the water bladder Durable: Made of FDA approved TPU materials resistant to mold and microbes & Non-toxic & Well anti-extreme pressure; Every stitching of every item is strictly tested by the quality department Versatile: Can be use as a hydration bladder and a pillow: After disassembling the quick-release tube,the water bladder can be used as a pillow; The Unique Design of the Air Pump: Press the air pump to inflate the water bladder and drink effortlessly Large Mouth Opening & Bite Valve & Drinking Tube:: Large opening water filling port easy for filling water, cleaning and drying.The large mouth opening provides ease for maintenance; Anti-leaking sliding opening: Cleaning, rinsing and drying are very convenient; Anti-microbial, taste-free; Lock to stop leaking. Comes with a dust cover; Eco-friendly and Anti-microbial tube Quick disconnect system: Just pressing the button to the disconnect,you will remove the tube for storage quickly and easily. QUICK-RELEASE TUBE can be detached for easy storing; High quality disconnects prevent the bladder from leaking